Says mashable:

Google today introduced Measurement Lab, a set of tools (some already working, some upcoming) for network diagnostics. . . . These tools include the Network Diagnostic Tool, which tests your connection speed and gives you a diagnosis on speed issues; Glasnost, which tests whether your ISP is blocking or throttling BitTorrent connections, and Network Path and Application Diagnosis, which helps you find problems that usually plague last-mile broadband networks.

[W]hat’s important is the fact that Google is taking a stand, saying: we’re going to help you fight for net neutrality even if the ISPs don’t like it. . . . It wasn’t an easy decision to make, even for a giant like Google. If these tools were coming from another source, the ISPs would probably simply employ measures that render them useless. However, it’s much harder to block a service if Google stands behind it. On the other hand, even Google doesn’t want to anger every ISP that’s throttling network traffic in some way - and many of them are doing it. Net neutrality has just received a huge push; probably one that will ultimately turn the tide to its favor.