We made our own in-house ASP.Net based CMS because, well, we could not find a simple yet easy to maintain .Net CMS at the time we needed. It is more like a platform to us to kick start any new project which has a public website as well as back-office. So far, Intellial CMS has been deployed to many high traffic websites, including the site you are visiting now. Intellial CMS is highly customized CMS with its own blog and newsletter module. There are tons of other features that are simple but highly effective.