You may already be aware of this, but the website [url="http://www.4teachers.org"]www.4teachers.org[/url] has some really great stuff on it - it's maintained by a university (Iforget which one). There are a lot of really neat applictions that are useful to me: the rubric maker and online poster are two that I use most.
The online poster is sort of a neat thing to have your kids do. It's a bit formulaic, but that's ok. I have my kids research a bacteria and the disease it causes and then create a MOST WANTED poster for the bacteria. The site allows the student to get one picture up and a lot of text. I really like that the site makes the kids cite their sources and give credit - no copy/paste.
You do have to register and make "classes" - this lets you see your kids' posters as they make them and keep track of where they are. I just grade them from online - saves a tree, too!
The site will host the posters for 30 days unless you choose to archive them, then you can access the archived ones whenever - this is great to use because you can keep a few of the best ones as guides for the next year's assignment.