Free FLV (Flash Video) Player

Flash Video is by far the best way to deliver video on the web. Every online video sharing site (YouTube, Google Video, etc) use flash video. For smaller websites, flash video supports on-demand streaming without a video streaming server.
The problem previously was that all flash video players previously were commercial offerings (or required that you purchase Adobe Flash Pro).

Luckily a dutch guy - Jeroen Wijering - has now created an Open Source alternative. From his website:

The player allows you to show your videos more controlled and to a broader audience than with Quicktime, Windows Media or Real Media. It supports playback of a single Flash video file, RTMP streams or RSS, XSPF and ATOM playlists (with advertisement possibilities), a wide range of flashvars (settings) for tweaking both behavior and appearance and an extensive, documented javascript/actionscript API

Check it out here!