Slashdot works on user and editor submissions (interesting news, book/game reviews, interviews,) most of which are linked to something offsite. It has enough users to kill webservers and sites that aren't prepared to handle a large influx of users suddenly. People comment extensively on the submissions, both while pending and when actively posted. Submissions don't get ranked, just posted or not depending on their expected value to the users. The do get categorized cased on the content, and users see categories they select as of interest to them, plus any that are consudered of general interest. As new things post, old ones get pushed down and eventually (by age, I think) get removed and archived.
I've been a daily slashdot reader/user for many years myself.
On another note, I found Glest via a list of freeware games somewhere online. Finding lists like these and adding Glest is always good. I THINK that I found Glest at freegamedev.net (?).
