I've just joined MySewingCircle.com
I entirely blame VickiKateMakes for my latest sign up ;) ... I now know that I'll be spending hours uploading my pattern stash to my profile LOL! I think I'll have to bring a list of pattern numbers with me to work - so can add them in in my lunch hours.
The site is relatively new, and it's apparently a bit like the equivalent of the Ravelry site which is for knitters and crocheters. But, MySewingCircle is run by different people.
I'm already a [FREE account type] member on PatternReview.com and also BurdaStyle.com. But I like the idea of being able to track my projects, and pattern / fabric stash on a free to use site. The reviews from members on PatternReview are great, and I enjoy the experimentation you get to see on BurdaStyle. But as first glance the MySewingCircle site looks to have great potential for future growth and expanded functionality too :)