This seemingly bogus terms are actually part of a largely popular feature on the World Wide Web. The weblogging activity began around 1994, and slowly it developed intoencompassing not only a variety of types of weblogs, but also a variety of users as well.
In the beginning, the phenomenon now called blogging was little more than the sometimes nutty, sometimes inspired writing of online diaries. These days, there are tech blogs and sex blogs and drug blogs and onanistic teenage blogs. But there are also news blogs and commentary blogs, sites packed with links and quips and ideas and arguments that only a month ago were the near-monopoly of established news outlets. Poised between media, blogs can be as nuanced and well-sourced as traditional journalism, but they have the immediacy of talk radio. (Sullivan 43)
As a very basic definition, a weblog is "a frequently updated, chronologically ordered collection of hypertext fragments it's a journal with the newest stuff at the top". This and a more detailed definition below come fromkottke.org , Jason Kottke's very professional weblogging site:
A weblog (which is sometimes written as "web log" or "weblog") is a Web site of personal or non-commercial origin that uses a dated log format and that is updated on a daily or very frequent basis with new information about a particular subject or range of subjects. The information can be written by the site owner, gleaned from other Web sites or other sources, or contributed by users. A Web log often has the quality of being a kind of "log of our times" from a particular point-of-view. Generally, Weblogs are devoted to one or several subjects or themes, usually of topical interest, and, in general, can be thought of as developing commentaries, individual or collective on their particular themes.
The other definitions created by bloggers themselves are vague and expansive ranging from "a webpage where a weblogger 'logs' all the other webpages she finds interesting (Jorn Barger/chymes.org)" to "just-in-time journalism (www.camworld.com)". For me, it's another form of the mass e-mail I sent to my friends about recent occurrences only this time, the audience will be more than my close friends. Plus, through this medium the opportunity to meet others that write/blog is there. A community of writers exists and surfing into someone that blogs like you is a possibility. Perhaps blogger.com's motto says it best: "Push-Button Publishing for the People."