wheel - 1:49 pm on Mar 15, 2010 (gmt 0)
surely other sites and people will do the link building for you.
That's up for debate. Personally, I completely disagree. I have hundreds to thousands of backlinks, and if you remove the scrapers and other junk, I don't think I've got a single backlink I didn't chase down myself.
Others are of the attitude that if you create good content, they will come.
My response to that is that if you're going to get the links naturally anyway, then you'll get even more links if you actively go looking.
Just be careful that you're not doing the 'if I build it they will come' as an excuse.