They work, but can make it more annoying. Why? Example. You use an all-in-one like Lifestream (AOL), and what happens to your longer than 140 character post? It gets cut on the other network (this is supposedly getting fixed). If you have interconnected accounts, you get multi-posts. If it's not connected or able to connect to certain networks, you still have to redo the posts. and various types of material you want to share don't work on these systems (mostly in terms of video, and picture shares). If you are only using Twitter, Facebook, and possibly MySpace...a service like this works, beautifully, as long as the networks are not interconnected, and you keep your posts under 140 characters. Also, using these tools, you don't get url links shortened like you would using Twitter or Tweetdeck directly. It just becomes a hassle, because most of the time it will double and triple post, and you then have to use the individual app or website to check your posts to delete the extra material - completely killing the aspect of the quick and easy post... Keep it simple, there's no need for such tools when you understand how to interconnect your social media together. But you can give it a try if you can setup quick and dirty posts. It definitely is a great tool to search for that post you are trying to show someone that can't remember when you added it to any number of your social media. Apps like this first started popping up with AOL and Motorola based Android phones that were attempting to make life simpler by using a one-post-to-bring-them-all (hey a mini-lotr reference, go figure) concept that most people will simply ignore using because of the problems I mentioned above. It gave a rise to the options you see used today with instagram, tumblr, and a variety of other photo applications that simply push to twitter, which then pushes to your other media (mostly through facebook). It's not really a bad option for quick on the go posts. But it also encourages the asshattery I mentioned before in tip #5, and we want to avoid that. Use it for simple and quick posts to a variety of your networks, but beware of how they function in general so you don't get stuck doing extra work.