You can add 30-40 per day safely on Facebook to your friends, and your current limit is set at 5000. I have a facebook buddy who says that the limit will be lifted in 2010, and could possibly be increased to between 7500 - 10000. The limits rule doesnt make sense, but look at the loads on the site, and work at the backend! There are over 300 million facebook users at this point and more joining everyday....the thrust is on keeping the network "problem-free"...look what happened to Orkut, ofr instance! They do not want a repeat of failed social media sites.