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Although both are not exactly new, social software like blogs and wikis are turning people's heads all over the Internet and even in the mainstream media. Of the two, blogs are more known and have grabbed more attention on the news with politics and in magazines like Time. Blogs were covered in an earlier On The Radar column here.
What in the world is a wiki? Unlike "blog" which is short for weblog, the term "wiki" was created in 1995 by a programmer from Oregon named Ward Cunningham. He got the term from wiki wiki, which means "quick" in Hawaiian. According to Webopedia.com, a wiki is:
"A collaborative Web site comprised of the perpetual collective work of many authors. Similar to a blog in structure and logic, a wiki allows anyone to edit, delete or modify content that has been placed on the Web site using a browser interface, including the work of previous authors. In contrast, a blog, typically authored by an individual, does not allow visitors to change the original posted material, only add comments to the original content."