Google Sites was used with some success for Westwinds Soccer. They only update it during the soccer season (a short season in Canada) and the last year I convinced them to use an embedded Google Spreadsheet to report the League Standings with some success. It will remain to be seen if they will be able to update the site for 2012 without some assistance.
The Magrath Chamber of Commerce is a site I am donating space and time to. The primary site is on my webserver using Joomla with links to Google Sites for projects like the upcoming Tradeshow. This approach allows for quick implementation and presentation of information for chamber projects without major webdesign project on the main site. I simply include a menu link to the Tradeshow on my main Joomla site and back to the Chamber site from the Google Sites page with similar theme and it seems to work ok.
Finally, a word on Social Media .. Google+ vs Twitter vs Facebook. Still find it awkward to use successfully. I would like to use my multiple personalities but these sites want only to know the actual me. I would like to post as Magrath Chamber when acting as their spokesperson and as Soft Serve Direct when wearing my business hat and only as R Davies when posting my own family news. Similar problem with email: I have Gmail accounts for all these same entities. To their credit, Google is making recent strides in letting me ‘switch identity’ as needed between my various email accounts.
Meanwhile, my webdesign efforts are much like my kindergarten art projects - various interesting pieces of information glued together in awkward ways with occasional missing links, that once in a while could be considered a masterpiece (by my mom).