I don't know wheter this is something new or allready got discussed but i just noticed that if you create in iGoogle a new tab and give it a meaningful name like "weather", "search", "news" etc google gives a a bunch of popular modules predifend to this tab.

so i fi create a Tab called Search i automaticly get Searchfields for Wikipedia, IMDb, YouTube, eBay etc. so is that new?

It's not new. Try this tabname: Recommendations