I think the personal learning network I'm most involved in is the crafty side of things. The main website i go to is Etsy . Although it is a community of handmade good sellers, it is also a source of crafty information--from how to take good photographs to sell your product, and how to create good banners to promote your store, to fashion trends of the season and spotlighted sellers. I've learned a lot about DIY and have been inspired by the people who do so well on Etsy. I have also learned how to interact in the online community better.
I also supplement my curiosity with sites like craftster.org, friends blogs and popular blogs (like pioneer woman cooks), where i get ideas and i learn more about the field of homemaking/independent business/creativity.