Google has introduced a new Web browser, called Chrome, aimed at wresting dominance of the browser market from Microsoft 's Internet Explorer. The move takes the Google-Microsoft rivalry to a whole new level. If Google succeeds, it will be a big deal, with major ramifications for the future of the Web.

But just how good is Chrome? How does it differ from IE and from less popular, but still important, browsers like Mozilla's Firefox and Apple 's Safari?

I've been testing Chrome for about a week, trying out all its features and using it side by side with Microsoft's latest iteration of IE, which came out just last week.

My verdict: Chrome is a smart, innovative browser that, in many common scenarios, will make using the Web faster, easier and less frustrating. But this first version -- which is just a beta, or test, release -- is rough around the edges and lacks some common browser features Google plans to add later. These omissions include a way to manage bookmarks, a command for emailing links and pages directly from the browser, and even a progress bar to show how much of a Web page has loaded.