If you think you've found a bug in the beta version, are running into an issue you can't figure out with the beta, or have a question about beta functionality, post it over in the general The specified item was not found. group.
If you've got a feature request - something that's NOT in v1 that you'd like to see in a future version - post it over in the Alert Central Beta Ideas/Feature Requests area: http://thwack.solarwinds.com/groups/alert-central-beta/content?filterID=content~objecttype~idea
If you're wondering how to participate in the beta contest, check out Christine's post: Beta Contest FAQ - An Example of How to Report an Alert Central Mention on a 3rd Party Site.
If you've integrated Alert Central with a third party product and would like to show other Alert Central customers how you did it, post it over in the Alert Central Beta Integration Library area: http://thwack.solarwinds.com/groups/alert-central-beta/content?filterID=content~category%5Bintegration-library%5D&filterID=content~objecttype~objecttype%5Bdocument%5D. (You can attach a document, sample source configuration, or post what you did.)
We'll update these forums with new links and areas on Thwack when Alert Central is no longer in beta.