Most of the bloggers are banned or have dropped PR by Google just because they used sponsored post or Pay per post type of things in the blogs. Which is the case why most of the bloggers are advised by PPP type companies to refrain from such names like sponsored in their posts
You need to go to Google webmaster tools and there is a link there called Reconsideration Request - Admit your guilt, say sorry, and ask Google to give you back your PR. It may work. Before that, you need to add your domain to the Dashboard, and add a file for Google to verify. Instructions should be in there (Webmaster Tools itself). Google has reduced all paid review blogs PR to zero, since about 2 weeks ago.
Not just paid blogs, one of my ecommerce sites was dropped. I would seriously consider a few things before submitting a reinclusion request. Dont submit a re-inclusion request unless your entire site is de-indexed If your site still has good SERP's but has lost its PR then it should not matter about PR Make sure you have FULLY rectified any problems before submitting the re-inclusion as by doing so you are telling google you have corrected everything you have done wrong, if you still have black hat link building strategies in place google may never index your site again.
My PR3 Mariotalk.com site went to PR0 overnight and I have not put any links on it. Same happened with 007fan.com I have no idea what is going on. Rgds - JB
I looking for catchy names. Sur you can use something like "Interesting Sites" or "friends" but it's not very catchy and that can be picked up by Google too.