Free high PR links
A lot of sites make it extremely easy to build some great links. If your link building campaign is suffering try posting to a few on this list.
hubpages- http://hubpages.com
When you are not signed in hubpages works like a blog. You put your name, e-mail, and most importantly your website link. Of course you should post relative posts in your niche for the best results, but you can still generate 20-30 links a day using this. Search for high PR pages before you post and soak up the good PR juice.
Squidoo- http://squidoo.com
Here you have to post an article or review of some sort. All you do is then hyperlink to your sites and get great backlinks. If you write a good lens you can even become a search engine magnet, load up the page with a few affiliate links and you even make a nice profit.
Wordpress- http://wordpress.com
Using wordpress itself you can actually search for blogs in your niche and then post to them to get some high quality links. The only downside to this method is that wp blogs come standard with the no-follow tag so you may be posting in vain. Spiders will still crawl the links and they can help your site get indexed but will not help your site’s PR in any way. There is no way to use wp to actually find out which blogs are no-follow, but if you are willing to spend time, you may find a great few. There are many bloggers now switching to do-follow to give back to their readers.
Happy link building guys, don’t get too spammy.