Bing traffic is going to jump real soon...
One of the biggest things that people do wrong is think that any page 1 term on Google is great and is the main goal.. But without people searching that term, it is not profitable.
Also, people need to stop searching for keywords to target based on broad terms and competition levels in tools like Google's keyword tool. That is for cpc ad placement and how many people are searching for related terms that could have an ad appear on and the competition is how much you'll probably have to spend. I see too many people giving wrong info on this..
Before targeting a term (Not longtails, that's a different game..), search the term yourself and see how many 'real' sites are on the first few pages with that keyword and if it might have any alternate more popular meanings that has nothing to do with your site or auto-corrects or anything else that might help in giving an idea of how much work you'll have to do to rank high and if you even want to go through with doing it.
Other than SEO, you can also push link trades, but be sure to check links to and from your sites to make sure they aren't bs feeder or empty sites and try to link with 'link relevancy' instead of worrying about PR. If it is a blog and is updated regularly, the PR should rise on it's own
Linkspun is good and works well, but also try to search for good blogs and send an email if you can find one for trades as well. Many adult bloggers won't put their good sites on linkspun or anything similar.
