There are a lot of theories on how many outgoing links there should be on each webpage at the moment. This video explains why google used to recommend less than 100 links, but explains how things have changed in time. As a general rule, we like to stay around 30 outbound links, however, the following Video goes into this further. Touching on some of the PageRank transfer issues that may arise with having excessive links. (Aside from the obvious linkfarm appearance.)