If you like to post videos on your blog, one option is to use JW Player 5 from LongTail Video. It gives you the ability to play FLV, H.264/MPEG-4, MP3 and YouTube videos from your blog. You can install several WordPress plugins that support videos, but WordPress plugins tend to slow down your blog if you have several of them installed. Running the JW Player directly from your site gives you the flexibility. You can apply different skins and plugins to it. In addition, you can monetize it by running your own ads. How popular amd stable is JW Player? Well, a little company named YouTube used it as their first player back in 2005. JW Flash Video Player is free. Learn more.