A couple of weeks ago the Dutch Association of Journalists NVJ (125 years old) launched a "community" portal based on Drupal. While it was a soft launch, already 999 users have signed up, showing that the need for a place in this niche.

Registered users can blog, ask questions and provide answers, microblog / twitter messages in the site, be active in forums, create and read wikipages, build a portfolio, be-friend people to network, start or join (organic) groups and search for jobs. Employers can post job openings as well.

Lots of content types / functionality usually leading to bad user experience; where do I do what? However, the site is rather popular and gets lots of hits and people do find what they are looking for in the site.

It was build by my employer DOP.nu using core Drupal, many contrib modules as well as half a dozen own modules. The Crowds did the concept and Xlab the design and User Interface.

It is my opinion that sites like these show Drupal at it's best, a community site where people help each other.