Yahoo’s social bookmarking service Delicious launched a new home page this morning, combining recent tagging activity and cross-referenced links on Twitter to deliver what it calls the hottest news from around the web in real time. While the exact formula behind the front page remains unclear, its contents are clearly changing minute by minute.

It is something the site probably should have done a while ago and if done correctly could make other services, like Digg, look all the more behind the times. The move could also help Delicious survive the coming Yahoo Search purge at the hands of Bing.

The new front page is focused on political and tech news instead of the most popular topic on Delicious, web design. There also appears to be some smart filtering of the Twitter messages being counted, as the numbers are far lower than other services’ counts and seem to exclude the spammy retweeting bots that pump up big news sources in other retweet counting services.

Good to see that Delicious is not standing still. Wonder how relevant they will continue to be with competitors eroding market share. In other words — how relevant will ‘hot news’ be? For whom?