Google On Limiting Links

As you may or may not be aware, Google recommends keeping the number of links on any given page to under 100. This recommendation can be found among Google's Matt Cutts took the opportunity to More Murdok Videos

"If you end up with hundreds of links on a page, Google might choose not to follow or to index all those links," explains Cutts." At any rate, you’re dividing the PageRank of that page between hundreds of links, so each link is only going to pass along a minuscule amount of PageRank anyway. Users often dislike link-heavy pages too, so before you go overboard putting a ton of links on a page, ask yourself what the purpose of the page is and whether it works well for the user experience."

To me, it's going to come down to personal judgment. Use links where they make sense and you'll probably be fine on the user experience level. Linking for linking's sake is probably where might start turning people off.