While we've been building out and scaling the infrastructure, we haven't stopped innovating and rolling out new features! Yesterday we released a beta language filtering service - this lets you filter search results by language, one of the top feature requests from our users. We listened hard to your feedback.
Go and give it a try, you'll see the filtering pulldown on every keyword search result, and you can restrict your search results to Chinese, Dutch, English, French, German, Greek, Italian, Japanese, Portuguese, or Spanish. It remembers your filtering preference, so you don't have to remind us every time you come and do a search on the same computer. This new feature is only in keyword searches for now, and it's still in beta.
We think our algorithms for doing language detection work reasonably well, but there's still lots of room for improvement, and for giving you, the blogger, more control about specifying the language that your posts are in. We're working on additional features to really help tune and tweak the system, but we thought that what we had so far was useful enough that we wanted to share it with you, in the spirit of "release early, release often". So, as always, enjoy! And please let us know how we're doing.