Preferred Sources is the latest feature for Google Search. After testing it myself, I think it's one of the best.

The new feature will apply to all search results, allowing users to set their preferred information sources for any topic. To choose preferred sources, simply click

When you think of Google Search, it's probably as a simple concept: You open Google, type a search, and scroll through the results—dodging ads and spam along the way. But Google's bread and butter is actually more than just its basic search engine.