It would be nice if on the list of Packages that there were hyperlinks for each one that had a description of what the package is. I have no idea what some of those packages are or what they would be used for.
This will be addressed real soon, thanks to peitolm. But if you are curious as to the purpose of a certain package I suggest google.
check the packages link on the main page,.. follow the links to find the info for the package you're looking for.