Needed: a brainstorming website for uniting on ideas

Needed: A website for publishing all kinds of ideas. Voting on them. Chance to offer help. Wiki-like features to evolve the idea together.

Needed: Yahoo! Placemaker for music

I express my wish for a webservice that analyzes a webpage and returns all occurences of song titles and music artists. You could then use this service to add links to your favorite music site (like last.fm or your napster streaming service).