Server List Problem

Hey guys and gals,

  I just got Steam and Garry's Mod as well as CS:S, Half-Life 2, and Portal; however when I go to join multi-player there are only 19 servers, when I play at my friend's house he has literally hundreds of servers, so why is it that I have such a low number? I just got my gaming laptop today, it is already connected to my internet and I have a very good internet.

                                                Thanks for any help;