At first, I had no clue what “Collective Intelligence” meant so I looked it up! Wiki defines it as, “a shared or group intelligence that emerges from the collaboration and competition of many individuals and appears in consensus decision making in bacteria, animals, humans and computer networks.”.
In my opinion, it seems as though Collective Intelligence and Web 2.0 have a whole lot to do with each other… Web 2.0 is basically a “collaboration and competition of many individuals” that have come together all in one place to create all kinds of different social networking websites, applications as well as post blogs on all different kinds of subjects. Most all websites have to do with interaction with one another, getting others’ opinions on various subjects and so on. Website forums are a pretty good example of online interaction… I know from experience! I’ve joined soooo many online forums over the years but only keep up with one now. I’m on the Official 30 Seconds To Mars boards (a bands forums) and have been on there for quite sometime. Through that website, I’ve met so many other fans locally as well as other countries; I’ve also gotten so much information on the band as well through the forums. A lot of fans of the band have come together to post what they know as well as other things to share with other fans such as flyers to print and post around local areas for band promotion, stencils, stickers, web banners and graphics and so on. There is also a section on posts that aren’t related to the band… there’s a lot of information about a wide variety of subjects in that section.
All-in-all what I understand Collective Intelligence to be in Web 2.0 is a bunch of people using the internet to get and share information with eachother on what they know about various things through different social networking, blogs, forums and websites (such as Wiki).
(Wiki: Collective Intelligence)
(Web 3.0+ and Collective Intelligence)
(The Collective Intelligence and Importance of Marketing in Web 2.0
Brittini's Class Blog. 
*Gasp* This is my first post on your blog – celebrate!
“Website forums are a pretty good example of online interaction”
They are indeed, but when it comes to some subjects there can be alot of garbage or misleading information – at least when it comes to open forums. However, and I’m sure your already aware to a degree, Wiki pages are a more substantial form of collective intelligence because its checked and verified by many different people and sources. Band forums can be equally as helpful because alot of the information on there is checked by adoring fans, such as yourself, and not many lies get to slip through. Travel blogs however can be a bit misleading because alot of that information isn’t checked so people can really say anything – it’s not like someone is going to go behind the corner of a certain shop in New Zealand to verify what somebody has said.
Your right when you say collective intelligence is Web 2.0. Actually everything we’re doing in IMD is about Web 2.0. I think that’s just the kind of new and unknown environment we’re heading into now. How exciting – I feel like I’m on Star Trek!!