In previous articles, I’ve touched on Twitter apps and Facebook apps and games. In this article, we’re going to move a bit beyond these two social giants. While some of the items I’ll discuss will be best known for their use on these networks, you can use them elsewhere as well. The most obvious of these is URL shorteners. If you’re typing on a site that limits the character count of your posts (such as Twitter), these can come in very handy. The best known of these is bit.ly; you can create a free account or just shorten a URL as a one-off. Tinyurl serves the same function. The latter site no…