JW Player is an easy-to-use FLV player that lets you add flash video to your website. It's a flexible tool that includes add-ons like customizable video players, the option to insert advertising into your videos, and video-sharing plug-ins.
If you want a very simple Flash player to install on your website, FLV Player offers a free version that's as easy to use as any you'll find. But the professional version of FLV Player, which you'll need to purchase for commercial content or customization, is not so straightforward. It requires an understanding of Flash and a basic level of programming knowledge.
Wimply FLV Player, a free desktop Flash player for Windows or Macs, also offers affordable online FLV players for your website. The two players, Rave (for multiple files) and Wasp (for single files), make it easy to put customized videos on your website. They offer unique tools and interfaces that allow beginners and non-programmers to get creative.
Flowplayer is an open-source video player you can use to embed video streams on your website. Flowplayer is very adaptable - with a variety of customizations and special plug-ins available in even the free version. Unfortunately, to take advantage of all that Flowplayer has to offer, you'll need to feel comfortable with web programming language.