maximimise your blog readership, Increase your ads revenue by partnering up with Yousaytoo.com You can even upload flash games and make revenue as well from them. You split your Google Adsense and Amazon affiliate impressions when you partner up with the site. They have a lot of stuff to offer once you start exploring the site. You can either make money for yourself or donate what you make for a cause.
I only have written a couple of Blogs since I partner up with them and they don't take your old publish post(only the ones when you register)...and the actual impressions i'm getting from the site has increased. You can also connect it to your facebook.
Usually other social blogging sites offers you the same capabilities, but you never feel the effect, but this one does. Its like BlogCatalog where you can centralize all of your existing Blogs and maximize your readers, but this one - you earn traffic and also earn money.
This will save you time because its all connected using your RSS feeds and they promote each of your posts.