PSN Update Link Finder (web site)
After seeing NZHawk's link finder: NZHawk | Awesome Update Finder
I looked at the source code and whipped up this site. Just input the title id, and you'll get a list of updates. No .NET Framework or Windows required.
I also attempted to do debug links, but I don't know if they work. Someone will have to verify that.
PSN Update Finder
Also, source: http://pastebin.com/rR5xUZS6
(You need PHP with SimpleXML support).
Finally, I don't know much, so if this is against the rules, or anything, I'll take it down. Thanks.