Like to play "guess what I'm thinking" games? Yahoo!'s hoping that you do, and that you might want to play it every time you conduct a search at their site. Yesterday, the popular search engine introduced a new feature dubbed "Instant Search" that provides a quick pop-up box with a suggested link as users type their search term into the query box.

Search Engine Watch's Danny Sullivan has full coverage of the new feature on the SEW blog. Forrester's Charlene Li take is also worth reading. But for a quick overview...

• As you start typing words into the query box, Yahoo! takes a guess at what you might be looking for based on popular queries. As it comes up with possibilities, it pops up a word bubble with a description and a link.
• The new feature, which I found fairly interesting, isn't a default option on Yahoo.com yet. You'll need to play with it at the Instant Search site and elect to have it added as a feature to the Yahoo! search page

Play around with Instant Search.