Tubics - SEO & analysis for YouTube videos
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
VidIQ - Generate tags for YouTueb Videos. Works as a browser extension .
TiddlyWiki - a non-linear personal web notebook
Biteplay - Create highly targeted Youtube ad campaigns in 5 minutes
Confluence - Confluence is content collaboration software that changes how modern teams work