After the general social networking sites, social reviewing or rating services are probably the most well-known source of online community action. Through these sites, individual users post reviews and rate their favorite bars, restaurants, stores, news items, books, movies....and libraries. People who need to find that kind of item or service can go to the community, search for what they need, read reviews, and then make a more informed choice. Once they've used the thing or the service, they can go back and add their review to the listing.
The number of social reviewing sites grows daily, but here's a few to get you going:
Media of all sorts: Amazon
News items: Digg, Reddit, and StumbleUpon
Food, Entertainment & Other Services: Yelp and Chowhound
Clothing: Many online stores now include customer review sections. Zappos (shoes) is a great example.
Contractors & Home Services: Angie's List -- a paid membership service that provides reviews of contractors. Take the Quick Tour to see how it works.
Simple -- choose a site from above, find something to rate, and submit a rating. Write about using the tool in your blog and include a link to your review. Better still, find a different rating site or store and share the discovery with us through your blog.
You'll find more detailed instructions on how to do this here.
Go the Extra Mile:
Look up your library or institution in Yelp. If it's not there, make an entry for it. You'll need to post an initial 'review' to get it going, but don't pretend to be a patron and give your library four stars. Be you and be honest about who you are and what your library has to offer.
If you'd prefer to review something else, try and do the same for your favorite local restaurant or entertainment venue.
Next up, Thing 6: It's Classified!