Another embeds a tiny MP3 player next to an MP3 link, so you don’t have to load an external player and can continue browsing as it streams in. This is great for browsing MP3 blogs.
This is exciting stuff and will scare the crap out of advertisement supported websites. I believe once information leaves the server it’s out of the author’s hands and the user can do whatever they want with it as long as it’s legal. Filtering out ads and changing menus is certainly legal.
Check out all these scripts.