A blog is a web log, a frequently updated website. Authors: Usually only one person - each post is one author's voice. Others can only leave comments. Collaborators: Usually visitors can comment. Sometimes a small team has the ability to post. Organization: The newest post appears at the top of the page and older posts move down until archived (usually by month). Blogs are easily created and easily updated. If you can , you can blog! And adding images and files is as easy as adding attachments. Some blog systems allow authors to embed media. It's a Two-Way Technology - visitors can leave comments.

To view examples of various blogs, point your browser to: and scroll to the middle of the page. One of the most secure blogs on the Internet would be “Blogger” ( Blogs written on blogger can be made secure for classes, allowing only registered members to view and comment.

The word “Wiki” come from Hawaiian meaning “Quick, Quick” A wiki is a web page that visitors can quickly edit Authors: Many. Most wikis allow either anonymous editing or editing by a limited number of approved users. Collaborators: All visitors can be collaborators, or access to edit the wiki can be limited to approved users. Organization: A wiki site is an interlinked collection of individual pages. Wikis allow easy collaboration and sharing of resources. Wikis maintain a history of all revisions to each page, including who made what changes. Most wikis also provide a discussion forum for each page.

To view examples of various wikis, point your browser to: and scroll to the bottom of the page. An interesting video on pedagogical wikis can be viewed at WikiWhileYouWork.mov One of the most secure wikis on the Internet would be “Wikispaces” ( Wikis written on Wikispaces can be made secure for classes, allowing only registered members to view and comment.