Maybe you can certainly find similar lyrics plugins for use in iTunes, but one thing I really appreciate about Songbird is how it integrates those web-enabled plugins to make them feel like a seamless part of the application. Great!!!
it lets you play all types of music and video files and works as browser too! 30sec file recognition, add of missing ID Tags, like Album Art, or additional info like Composer
very cool skin, useful options, CD-ripping possible, search songinformation on the web, just a little slow compared with MediaMonkey, but it does all jobs correctly. It is also possible to view webpages in Songbird !