Matt Cutts has written a blog post with a poll to get more information from all webmasters on the next feature for Google Webmaster Central, a great resource for webmasters already that is always improving.
He asks users to vote for their most important desired feature so that the Google Webmaster team can possibly integrate them in the future. He notes that they're only looking right now to get an idea of what is most important for webmasters and the winning result may not necessarily be implemented right away.
Some of the suggested improvements include:
- Providing more information about penalties
- Giving tools that report/detect duplicate content
- Show broken links to your site
- Give a way to list supplemental result pages
- Show pages that don't validate
- Provide a tool that helps move from one domain to another domain
These are good suggestions, and it's encouraged that you vote on the poll.
Forum discussion at WebmasterWorld.