backlinks is not all about getting as many backlinks as you can. They have to be quality backlinks. Links on pages related to the contractor industry as in our case. you also need to have a good anchor text for your links .
A lot of forums and blogs will have no folllow links meaning google will not follow them or consider them for pr or as backlinks. So the point of posting on these blogs and forums for pr or serps is useless. Do a little research online how to get good backlinks.
The best way really to get backlinks is through article submissions. at sites such as ezinearticles.com. these are really good methods on getting your backlinks out there.
I also recommend doing mutual trade links. They still count mo matter what people tell you , have reciprocal links are still valuable. I would trade with other contractors in different states in the same industry you are in.
Another way to get your backlinks out there is to be a contributor to other sites. Such as mine (sorry for the selfish plug) where you write for a blog or website and they give you backlinks on each article you write.
Getting listed on superpages,merchant circle, kudzu, etc,etc also another great way to get backlinks that are quality.
Do not worry about getting a ton of backlinks , concentrate on getting a few very good quality backlinks from your industry and you will rank really high as long as you have good content and site seo .
any questions please ask , oh yeah if you want to contribute to my site hit me up