open source alternatives to popular websites
- by Richard
Hello,
The other day I came across Jaiku, which is a well structured microblogging system open sourced by Google.
It surprised me I had never heard about this, so I was wondering what other open source alternatives exist for mainstream websites?
I am not asking about forums, eCommerce, wiki's, CMS's, etc, where the market leaders are already well known open source applications (phpBB, osCommerce, Mediawiki, Drupal).
But what about open source alternatives for:
Social networking (Facebook)?
Classified advertising (Craigslist)?
Jobs (CareerBuilder)?
Dating (eHarmony)?
Or any other field that is defined by a commercial website, as Twitter does for microblogging.