My own blog, pinterest, stumbleupon, google+ (via my blog), reddit, twitter, facebook, various crafting forums like getcrafty or craftworld, about, ask, rebelmouse, yahoo questions/answers, blog posting.
For most of these, I use HootSuite to manage my accounts.
And anywhere that's relevant to handmade jewelry, arts and crafts, upcycling, etc and offers dofollow links, I join/comment.