Spreading The Posts!
After trying many plug-ins for WordPress to publish my site’s posts on both Twitter & Facebook, I came to a simple conclusion: 3rd party plug-ins are useless! The best way to go is using plug-ins that truly integrate with WordPress. The ones I used were: Wordbook (integrates with Facebook) and WordTwit (integrates with twitter). The result is satysfying and practical: both plugins submit new posts directly to Twitter & Facebook.
Now, the only problem I encountered was with Wordbook: It requires PHP5. By default, my host (1and1) uses PHP4, you have to choose PHP5 when you create a new MySql database. To overcome this problem, I used a very simple solution that I found on 1and1 FAQ site (Link to original page):
By default Apache uses PHP 4 for .php extension. If you don’t want to rename all your
scripts to .php5 you can do the following:
Create a .htaccess file and place the following line AddType x-mapp-php5 .php in it.
Now I enjoy true integration with my 2 favorite social sites 
