Social Revitalizer is the latest company to offer a tool to bring together Facebook and Twitter — Social Twitter, a Facebook application that lets users of both social networks to post Tweets directly from their Facebook page.

Using Social Twitter to update your Twitter feed from your Facebook page is pretty straightforward. You need to add the app, then give it your Twitter handle and password. In the app, there’s a 140-character counter and tabs to post or clear your entry. You can also create a profile box on your wall or Boxes tab which shows your Twitter avatar, name and latest Tweet on your home page.

Social Twitter offers users a way to selectively post their Facebook status updates to their Twitter feeds, sort of like Facebook’s new in-house app for posting from pages to Twitter. Facebook, however, doesn’t currently let you selectively post status updates from your personal profile to Twitter (something MySpace has notably recently turned on). Most of Twitter-Facebook applications already available, including Twitter’s own Facebook app, third-party apps like TweetFace, Selective Twitter Status and desktop app Tweetdeck, are built around Twitter, then let you selectively post tweets into Facebook.

Social Twitter is also a little different in that it also allows users to create a Twitter tab on their Facebook pages where they can access their Twitter account and track all of their own Tweets.

Social Revitalizer offers a range of other Facebook applications and services for individuals and businesses, and it seems that it has done a good job of addressing some of the concerns that arose with similar programs. The convenience of posting directly to Twitter while seeing your feed from Facebook is a nice touch, but it could be even better if there was the ability to view the feed of those your following, or at least those that are also using Facebook or the service. This is still a rather new application, so it will be interesting to see how it develops as more people beginning using and commenting on the app.