Filtrbox should also be on your list. It monitors mainstream news, blogs and social media and can be setup in minutes providing updates through a daily summary email, custom RSS feeds or web dashboard. It is easier than using Yahoo Pipes and MonitorThis, provides way more noise control than Google Alerts, better coverage than Technorati and Tweetbeep and is easier to use that Trackur. They offer a free service that lets you track 5 topics and see the full power of the product so try it out - http://www.filtrbox.com

Thanks for reporting the issue and sorry for the inconvenience. We will investigate the error directly. We have seen other new subscriber sign ups this afternoon and were able to create your account through the site. I will send you your login information privately.