Originally Posted by Black All Through

Dont throw links at your website or blog, stacking is not the solution when done without looking at what your buying or trading.
A ranked pr1 website with less than 10 outgoing links is worth more than a same ranked pr3 with 50 outgoing links. I love the pr sluts out there, I have a few pr4's full of links and they still want to get their sites listed.
Look for age, check to see if it has ever been a different niche or even once a mainstream site, in that case let it go. If the domain is old but there has been a big gap on inactivity then the link is worth less.
Look out for rss feeds and copied content, they wont do much for you either.
Different IP's no doubt, but most of all different hosts, dont stockpile links from someone that tells you they have 150 ip's but they are on the same class c, panda is much smarter than that.
Adding more than 13-15 links per day can be a huge risk for a google ban if the domain is new or has yet to be serped.
Trading blog "post" links has been very effective since the panda showed its face, but here also don't post on your own sites that have share the same google-anal duh!
Spread your site out, link at least 20% of the time to a category page of your site/blog.
Nofollow all sponsor links, wherever they can be found.
Don't host all the images and always rename them with different but same niche keys.
These are things we know for sure from experimenting on our crash test sites.

As I'm at it, let me spam this thread saying that we have an opening for another 2 sites if anyone is interested in good SEO at an affordable price drop us a line.