Does anyone know of a good article / press release submission tool that helps automate the process? One where you can add and remove sites from the DB.
Yes Senuke has a good reputation in terms of content/link submission. But you should still do manual submissions too
Try this: http://products.softsolutionslimited.com/news_publisher/index.htm It submits your news, press release and business information to top 100 press release websites.
You can hit me up by PM and I can show you the automated techniques I use. Or you can always outsource to someone that provides basically that as services to what your looking for.