Like with Beta 1, the second beta of IE8 will be made available for public download. Still, there's good reason to become a participant in Microsoft's IE8 Technical Beta program. In addition to filing a direct bug reports, official testers can be invited to other beta programs, such as Windows 7 or Office 14.

In addition, Microsoft occasionally makes beta builds available to testers that it does not release to the public, offering a chance to try out and provide feedback on new features in advance. With the final release of IE8 due later this year, it's likely that interim builds will follow Beta 2.

You can read the entire article at BetaNews.