I didn't know you had to be a certain level to post links. I just got addicted to answering questions on two separate occasions and was posting URLs telling ppl to copy and paste. Then one day they turned into links! That explains why - duh! Regarding backlinks, it doesn't matter if they're No Follow as your site will seem a lot more natural with both Do Follow and No Follow links. Outsource this if you can though, so you can get on with more meaty marketing.
Anchor text is the way forward for all links. Does anyone know if links written as www. site .com count for anything with Google or yahoo?