Have been spending some time recently back linking for a new non-IM site in forums. Just doing the norm - anchored link in my signature. It's a gazillion times easier than article writing and, unlike blog commenting, you know that you're link doesn't have to go through moderation!
This is not something that I have done much of before. Based on your experiences how much Google juice do forum signature links carry?
Is it something that could be used in isolation to rank for a moderately competitive keyword?
I love it! It's so easy.