SocialComputing

How exactly is Facebook making money?

How Wikis Work

reCAPTCHA is a positive example of crowd-sourcing: it distributes a laborious process among millions of users.

PowerReviews to offer social product reviews to brands

PowerReviews said it believes that it's that social element that could significantly improve its clients' ability to drive traffic to their sites. The company makes BrandConnect available to retailers and brands on Tuesday.

After seeing that it has taken Facebook five and a half years to become cash flow-positive, it seems that founders Michael Fleischmann and Chuck Donnelley are trying to create a new revenue model for their social network.

Trustworthiness Critics of publicly editable wiki systems argue that these systems could be easily tampered with, while proponents argue that the community of users can catch malicious content and correct it.[2] Lars Aronsson, a data systems specialist, summarizes the controversy as follows: “ Most people, when they first learn about the wiki concept, assume that a Web site that can be edited by anybody would soon be rendered useless by destructive input. It sounds like offering free spray cans next to a grey concrete wall. The only likely outcome would be ugly graffiti and simple tagging, and many artistic efforts would not be long lived. Still, it seems to work very well.[6]

Vandalism and Edit Wars

Web 2.0 sites that enable people to create content are increasingly used to carry out a wide range of attacks

more people than ever are spending their time online visiting content sites which provide news, information, and entertainment

Why Social Networks are Replacing Email As to why social networking sites have led to declining use of other communication tools, Pam Horan, president of the OPA, speculates that it's because people can conduct the same activities on the social networks as they did before via email, IM, and other communication properties, but now they can do so more efficiently. While we would argue that in the business world, emailing is still an essential, "can't live without it" tool, it's not so far-fetched to say that Facebook and the like have changed mainstream users' online behavior. Want to share a funny video? Post it to your profile. Have new pictures from your vacation? Upload them to an online album. These are precisely the sorts of online activities that only a few years ago took place primarily via email messages. Social networking has undoubtedly changed that.

It has become an important concept for use in business

supporting any sort of social behavior in or through computational systems

Thus, blogs, email, instant messaging, social network services, wikis, social bookmarking and other instances of what is often called social software illustrate ideas from social computing, but also other kinds of software applications where people interact socially.