A blog is simply another word for a weblog, there is no difference between the two.
Dictionary publisher Merriam-Webster's reports that "Blog" tops their list of the 10 words of the year. Merriam-Webster Inc. said on Tuesday that blog, defined as "a Web site that contains an online personal journal with reflections, comments and often hyperlinks," was the most looked-up word on its Internet sites this year.
A BLOG or WEBLOG is a personal website:
containing mostly news ("posts") regularly updated in the form of a diary (most recent posts at the top of the page), with most of the posts also arranged in categories, set up using a specially-designed interactive tool, usually created and run by a single person, sometimes anonymously.
are usally text (including external links), sometimes with pictures and, more and more often, sound and video.
can be commented on by visitors.
are archived on the blog and can be accessed there indefinitely.
So a BLOG is much like a "personal webpage, except that:
is easier to set up and maintain and so much more active and more frequently updated.
encourages a more open and personal style and franker viewpoints.
greatly encourages discussion with visitors and other bloggers.
sets a standard worldwide format for blogs.
