I'm going to be posting a little article this weekend comparing 4 wiki platforms for teachers (wikispaces, PBworks - formerly PBwiki, wetpaint, and luminotes), highlighting user levels, etc. And in my opinion PBworks is by far the most robust, but it's also the one that requires the most up front time to develop properly: of course, difficulty of development is all connected to what you want to do with it, and quite frankly the age, level, experience of your users (the students).
If you have any specific questions about PBwiki (PBworks), feel free to shoot me an email. I work there and just finished up our edu summer camp, so I can point you to some specific resources. Or you can check out our edu discussion forum here: http://educatorforum.pbworks.com/forum/
I look forward to reading your post Meg and thank you Kristine for your offer - I'll let you know if I have more questions as I'm exploring. I can see why Karen said your customer service was phenomenal! :-)
Besides all the other comments about PBWorks and Wikispaces, I'd like to add one more great feature of PBWorks: templates. If you have a page style that you want students to use (such as book review form, project tracking, questions, etc.), all that you need to do is to add "template" to the tag of the page you want as a template. When students create a new page, that template (as the name you gave the page) shows up in the options so students do not need to retype everything. It's fantastic. I use PBWorks extensively, but it really depends on your purpose. Sheri
List of my templates when I cleck "Template" under "Options" when creating a page:
Last year I started playing around with wikis and I just found PBWorks easier to use. Although getting students added can be time consuming. It may be the same for Wikispaces I never got that far. The wikis the students created were great and relatively easy to do. One other thing I found was PBWorks would not allow more than one person at a time to edit a wiki. So if we were working in class in groups only one member could be logged on. Again it may be the same for Wikispaces. PBWorks has a real easy history check to see who has been doing what and good comment section. I really like it.
If you have an educator account (free) at wikispaces - you too can create individual student logins that do not require a student to have an email address, using the bulk user creator in the Managing Wikispace area. You can also email the team at wikispaces and they will do it for you.
Just recently PBwiki announced that they will no longer be offering any new "ad-free" accounts for educators. All existing educator wikis will remain ad-free though. Wikispaces still offers "ad-free" accounts for educators.
I've worked extensively with both. If you are using the free versions, Wikispaces offers a few big advantages, including offering a backup (hugely important) and offering an ad-free version for educators. Teachers also seem to learn it a little quicker than PBWorks in my experience.
I've been reading these discussions to find a wiki that would suit my classroom needs -- I even used the wizard on WikiMatrix to help me decide. However, I still haven't found conclusive information on which wiki is best for viewing on mobile items like an iPod touch, or a Smartphone. Does anyone have any tips or suggestions? Any help would be appreciated!