Site forums are useful for asking and finding answers to specific problems, but the fact that the same query appears multiple times isn't always evident. In its latest tweak to search results, Google is grouping together forum posts on similar topics from the same site.
Two of Lifehacker's perennial topics, tech and travel, commonly suffer from this kind of forum overload, so search aggregation seems very useful to us. There's no way to trigger the feature, and the results can vary (as the screenshot shows), but it's a potentially handy tweak nonetheless. Other recent changes by Google include more jump-to links, real-time search enhancements and the controversial larger search box.
Surfacing forum posts in search results [Official Google Blog]