Some new search functionality to mention. Sometime this month (May) will be the release of WolframAlpha, a search engine that is trying to allow you not only to get information (results) from a search, but have a search engine that will figure things out for you. Conceptually, it's quite interesting, and if it is even marginally successful, it may revolutionize search engines. Check out their blog from March to get a bit more insight about it.
Natch, Google isn't dormant, either. Google Options has been added to search results pages. You'll find the Show Options link beneath the search term you entered at the top of the page. Features of this include grouping results by date, timeline, and using their Wonder Wheel (doesn't that sound like a superhero?). Check out this video from the Official Google blog to learn about these tools. The video is within the text, about 6 paragraphs into the blog.
Also on Google's horizon is Google Squared, which many folks feel is their response to WolframAlpha. While not officially released yet, a great unofficial Google blog, Google Blogoscoped, offers a good explanation and some screen shots. Of course, if you just want to see a video, here's one that's been posted on You Tube to show & explain what Google Squared is all about.
And you thought search was just about entering a few words in a box.