There are several places to provide feedback, submit bugs or suggest new features:

• ReSharper bug tracker: http://youtrack.jetbrains.net/issues/RSRP
• ReSharper forums: http://devnet.jetbrains.net/community/resharper
• ReSharper newsgroups (jetbrains.resharper.eap, jetbrains.resharper.eap.announcements, jetbrains.resharper.community and jetbrains.resharper.openapi) at the news server news.intellij.net
• ReSharper support: support@jetbrains.com

Tips on submitting:

• If you've encountered a reproducible bug or an exception, you can put it directly to our tracker provided with the steps to reproduce or a sample solution
• If you have a feature suggestion which needs discussion (e.g. you have an idea of a feature, but do not know how it should work/look exactly), you can discuss it with our developers through the forums or the newsgroups. Otherwise, you can put it directly to ReSharper tracker. Please make sure there're no similar requests in the tracker before posting your suggestion, otherwise you can just watch the existing request
• If you have problems using the product or some other technical question you can post it through forums/newsgroups or contact ReSharper support
• If you have questions regarding pricing, quotes or licensing please contact our sales managers (sales@jetbrains.com)