Minecraft Web Display Mod is a mod with allows one to search the internet. It has flash so you could stream videos off of YouTube and P--other websites that I wont mention. Even though most people already have browsers, this is a cool feature. If you can get it to work on multiplayer, you could also stream YouTube and P-- again, other websites I won't mention, with your friends! Hooray
AntVenom's video:

Link to the mod: [1.6.2~1.6.4] [Forge] Web Displays - Browse On the Internet in Minecraft! - Minecraft Forum

Enjoy :D