Cuckold-Forum.net - Free forums dealing with different aspects of cuckolding (free registration required).
Apparently, this forum is not so free anymore. As a new user you can still read everything, but it requires you to purchase a "premium" account to post anything. Still some good reading though.

Porn for Cuckolds - Net's biggest and hottest cuckold community.
Huge forums that you can read for free, but if you want to post or see the attached pictures you have to register (and that costs money).

Cuckolds - Cuckolds Wife Sharing & Interracial Sex Forums. For Hotwives Girlfriends Bulls Cheating Wife Creampies & Cuckold Husbands. Genuine Amateur Porn Pictures, Stories, Wife Swapping Movie LinksCuck Lifestyle Confessions & Personal Ads.
Free, UK based, with focus on pictures and real encounters.

Femdom Forum - Free femdom forums
Mostly femdom forums, but has a cuckold subforum as well. Not much there yet, but it is fairly new so we will see how it develops.

Cuckolds Heaven - Forum about cuckolds, slut wives and bulls. Free registration!
Very new forum, so it's hard to say anything about it. Quite empty for the moment.

Slut Wife talk - Free message forum covering all aspect so Slut Wife/cuckolding
I haven't registered yet, so I don't know how's the activity inside, but from the outside it looks good.

Hotel Cuckold - Hotel Cuckold features the finest audio stories for followers of the cuckold, hot wife & interracial lifestyle. Listen to the true life adventures of John & Robin, in addition to their members' requests recreated in audio by Robin.
I've listened to one of their stories and it was hot - Robin has a sexy voice. And it's not just a collection of audio stories - it seems to be a living site where you can do requests for stories, chat with John and Robin and more.

Cuckold-mistress - This is the real thing, a real married couple that do this in real life, not filmed in a studio with actors, this is shot in their own house. She really is a slut that loves to get fucked and makes her husband wait at home for her, and he loves her so much that he lets her do whatever she wants and even licks her pussy clean between her getting fucked by different guys!!

Cuckold me now - Watch wives have sex in fron of their wimp husbands.
A great site by the people who made the famous "Cuckold Fantasies" movies. (Which, by the way, you can purchase there as well).

Cuckold Comics - 300+ Slutwife comic pages! Shocking cuckold fantasies!

I Cuckold My Husband - An online documentary of my life as a Black Cock Whore and the cuckolding and humiliation of my submissive wimp husband.
This seems to be real couple living in a D/s cuckold marriage.

Cuckold Life - This site is for people who wish to explore the cuckold life.
I'm not sure what this site contains as there is very little preview or update information. Many good links though.

I need a Bitch! - These hotties are ready to humiliate you and cuckold your sorry ass!Pics-Videos
This site is about femdom and humiliation but has some cuckold content as well (focusing on the cuckold's humiliation).

SpoiledBlackPrincess - Ebony femdom model offers lifestyle fetish story blog entries of BLACK cock worship plus humiliation assignments parading, & teasing cock sucking admires,sissyboys & love-sick envious losers.
This site is more about humiliation, forced bi and money slavery, but I guess some cuckolds enjoy those fantasies as well.

CuckoldCaptions.com - The most cuckold captions of any site on the 'Net from the best captioners: Lestatdl1, Ms Cix, Indecisive, Bee, Els, 3rd Horseman and more! Frequent updates with more than 150 new captions every month.
Haven't seen inside, but if you like those captions it's probably a good place to check out.

Cuckold Space - If you're looking for the ulitimate cockold experience you have cum to the right place pics,video,chat,blog we have it all for free so join up and get your freak on...
It's a social network created on Ning. It's free to join and looks like it has tons of things to explore, so I'll write more about it when I had some time to take a closer look.

Cuckolding Princess - My name is Michelle Lynn and I love cuckolding men. Making them want to fuck me so bad that they take me shopping and will spend tons of money on me even though I will never fuck them! I'll let them watch me fuck lots of guys though. I love getting fucked. Pounded real good, and having hot loads squirted deep inside my pussy! Then having my cuckold clean up my cum stained pussy. Clean all that cum out for me! Then I'll let you take me shopping again!
Looks like a Money Domme, but she also sells some humiliation/cuckolding video clips. The blog doesn't have many entries, but it's free and focuses on humiliation.

Cuckolds & Hotwives - Social Sexual Network for Cuckolds and Hotwives

Cuckold Or Maybe Not - A new blog providing general information on the cuckold culture and the 'diary' of a husband who has very confused thoughts about being a cuckold and whether to take the final probable step of "no way back"

Cuckold Contacts - We hope to bring you the very best of cuckold contacts, hotwifes with cuckold husbands, male bulls looking for cuckold couples to contact, sexy wives searching for a new lover, and much much more. Cuckold Contacts is the one stop place to meet other cuckolding couples from around the world. Membership is currently free so why hesitate join cuckold contacts now!
With an intention to remain free it could turn into a major meeting place for cuckold couples and bulls.

Penis Size MATTERS - A place for smalldicks to learn their place. Chastised and cuckolded they will be useful for their hotwives and their lovers with real cocks.
This site is all about small dick humiliation and big dick worship.

SarasPlayroom - Blog site which explores cuckoldry, big black cock worship, forced bi / gay action, penis size humiliation, size queens.
Frequent postings and has been around for a while (since 2006)

Jinxypie.com - Cuckoldress Jinxypie loves to meet new men to cuckold her sissy husband. Come explore and help Jinxypie in her quest to dominate all sissys.
At last a real person and a real cuckoldress! I'm all excited about how this site will develop.

Cuckyboys - The net's largest free Hot Wives and Cuckold site. Free personals, discussion board, hot wife stories, pics, toon and more.

Cuckold Blog
Stories and pictures send by users. Frequent updates and great reading.

Cuckold Denied - Cuckold, femdom, handjobs, cock control!
I think it's supposed to be some kind of blog about orgasm denial and cuckolding, but it's slow and the entries are few yet.

Interracial Magic, The Interracial Magazine - Videos, photos, galleries, art, stories, comments and more
Some interesting things, but it claims to be a monthly e-zine and the latest issue says "October 2008"... So I guess don't hold your breath waiting for an update.

Cuckold Site reviews - Real cuckold stories, best cuckold site reviews featuring various content of the highest quality including interracial cuckolding, hot wife sharing, creampies and cuckold humiliation.
If you plan on subscribing to any cuckold pay site make sure to check those reviews first. Somebody put a lot of work into making very detailed descriptions of a lot of cuckold sites, not only describing the content but even the technical stuff, like download speeds, resolutions used, etc. Great resource for potential customers.

The Humiliation! - Men humiliated! CFNM Humiliation, Sissy Humiliation, Cuckold Humiliation, Small Penis Humiliation & more!
Looks like a front site for CFNM pay site, offers many free galleries and links to cuckold/humiliation lists.

Sharing My Girl Group - This group is for guys who wants to share his gf/wife and for guys that wants other people's gf/wives.
A Yahoo group, not much activity yet but I'll keep an eye on it.

Cuckold Stories Blog - Like reading free cuckold stories submitted by real cuckolds, hotwives and bulls? Click here to read all our hot stories for free & submit yours!
A few free stories, lets hope there will be lots of them after a while!

Cuckoldz.com - Hot Wives & Cuckolds - Husbands watching their wives fuck other men. Black cock whores, threesome sluts and more.
Though it only contains promotional material from other pay sites, there is a lot of it and from many different sites, so it's quite nice to have it all in one place.

Black Rhinos Interracial Club - Pushing the limits of extreme interracial sex, cuckolds beware!
Galleies, mostly interracial and milf.

Sissy Husband Humiliated Blog - Watch Sissy Husbands getting humiliated by their hot wives. Premium Cuckold Porn Videos
Well, it's not a typical blog - the entries are rather cuckold videos reviews - with screenshots, descriptions, samples and links to where to find them. Some videos are free (require a free signup to get), some are on pay sites.

Cuckolds Blog - The home of online cuckold action. These guys watch their wives get fucked in front of their eyes.
Another "blog" trying to push some cuckold pay sites.

Cuckold-World - A totally free grass roots website dedicated to the cuckold life style. It includes a personals section and a forums section. Feel free to upload or downloads cuckold videos or chat with other members.
Someone is trying to start a community here. The site is still rather buggy, hard to navigate and quite empty, but if it's really created by "grass roots" then it just might turn into something good eventually.

Cuckold Supremacist Tasha - How long have you been torturing yourself with fantasies of becoming a cuckold? You've wished and hoped that your wife or girlfriend would succumb to the charms of a BIG COCK because you know your little weiner is NEVER going to satisfy her. It's time you stepped out of your comfort zone wannabe cuckold boy and join Me in My adventures as a Dominant Slut Wife for Phone Sex.

Ultimate in Cuckold Phone Sex - Get the ULTIMATE cuckold phone fantasy, listen to a couple fuck LIVE for you! There is no limit to what these wives & girlfriends will do. Talk to 11 real women who all live the cuckold lifestyle. Calls are $2.25 a min or 30 mins for $60. LIVE FUCKING SPECIAL 20 mins for $50!

Bratty Princess Cuckoldress - The ultimate Bratty Princess cuckold phone sex site. Call me for cuckold phone sex while you read stories of my interracial relationship with my black bull as we humiliate wimpy cuckold losers.

Cuckold Phone Sluts - Cuckold phone sex fantasies with naughty cheating wives. Come explore your naughty desires now.

Forced Cuckolds - Mistress Jane Vanderkellen loves to force cuckie husbands and boy toys to watch as she fucks REAL men! Sometimes she forces her cucks to clean her up afterwards or ready her studs! Call 1-888-400-JANE (5263) and confess your cuckold status now.

Cuckoldress and cheating wife - the confessions of - Cuckoldress and cheating wife to my submissive husband. Read my blog, and cuckolding stories. Phone sex and cuckold phone sex training

Cuckold City - Cuckold toplist from Quality XXX Traffic

Cuckold List - Links to cuckold sites with free pics and videos.
3 similar lists with a lot of links.

Cuckold Directory - Links page to cuckold sites on the net.
3 similar lists with a lot of links.

Cuckold Files - Cuckold sites with free pictures and videos.
3 similar lists with a lot of links

The Slutwife Files - Verified links to hot wife and cuckold sites
More slutwife/interracial oriented toplist. I prefer lists with text links, but maybe some people like that thumb pictures layout.

www.cuckold.name
This is a completely new toplist, lets see if it turns better or worse than the others...

Cuckold Top 50 - A complete List featuring the most experienced and knowledgeable Cuckold/Phone Sex sites available on the net.

Black Cock Sluts - Big list of black cock sluts - interracial sex, cuckold humiliation.
Links to paysites and other cuckold link lists