In linux usually you don't go fishing software around the web unless you have a very specific need and your distro can't fill it.
You should use the package manager of your distro and install everything from there. You don't need howtos or the like.
If you really like to navigate the web, you can use sourceforge or freshmeat, but after you find a program, if you want to try, search it in your package manager because most likely it's there, and install it from there. If you install things out of your package manager you are asking for trouble.