RealBigNudes is a site where you will find everything from chubby to obese chicks. There are also some fairly slim babes, so some of you BBW enthusiasts might be bothered by that.
There's a total of 1,106 videos and 893 sets of pictures at the moment and it would seem that additional material is being added a few times a week. The vids can be streamed in Flash or downloaded as MP4s and Windows Media files. The quality of the flicks can vary at times, but the best of the Windows Media files offer stellar-quality playback. The pics tend to look good too and you can download them in Zip files.
In addition to movies and photos, your membership also gets you a bunch of full-length DVDs and access to a ton of bonus sites. Few of the extra sites feature fatties, so they might not please all fans of BBWs.
You're dealing with a big site here, but since many of its models aren't all that large themselves, its target audience might be somewhat disappointed by what it offers. Those with varied tastes will likely find enough to like about the site.