There's been some discussion recently about Mailinator, a web application that provides instant, disposable e-mail addresses. Apart from being struck by what a brilliantly simple and useful idea this is (and wondering why I didn't think of it!), I was also interested to notice that Mailinator is a Jakarta Struts application. The URLs ending in “.do” give it away, although this is a convention; it's not enforced by Struts. You can use any URL pattern that you wish.
Struts applications on the Internet still seem to be relatively rare but I think that reflects the fact that there don't seem to be many J2EE applications in general out on the web. Or maybe it's a sign of their success that I just haven't noticed them.
Still Working On It
Unfortunately the comments system and feedback page on this site are still broken. My hosting provider is having difficulty getting the MySQL databases back to how they were. Once again I apologise for the situation and thank you for your patience.