he provided a semi-useful service when blogging was just becoming a legitimate medium and you didn't want to follow multiple ones, before that everybody of all the political spectrum and level used Drudge back in the day just because he aggregated so much news onto one easy page and linked to the main articles, they had a simplicity in design that matched their function...there was basically a Democratic version "instapundit" that i forget the name of now, so you could just hit both of them to see what the big time bloggers/columnists were fighting about without having to troll through multiple blogs, and it aggregated the news cycle too because there was a level of activity that the news corporations hadn't, and arguably still don't, tapped into understanding in terms of their own sites presenting content
but you don't even need people like Glenn or Drudge's interns for that stuff anymore, as i've mentioned i use memorandum as my news page and that's all just a set of scripts (or nefarious AI's)