I started blogging last May 2007 but only after a year I knew the real meaning of blog. It is not the definition but it's in terms of actual experience. Blog is commonly a personal online diary. Some blogs focus on a particular subject like art (artblog ), photographs (photoblog), sketches (sketchblog), videos (vlog), music (MP3 blog) audio (podcasting), political blogs, travel blogs, house blogs, fashion blogs, education blogs, niche blogs, and legal blogs (blawgs) or dreamlogs. And one used for the sole purpose of spamming is known as a splog.
A blog is a contraction of the term "web log". The term "weblog" was coined by Jorn Barger on December 17, 1997. The short form "blog" was coined by Peter Merholz, who jokingly broke the word weblog into the phrase we blog in the sidebar of his blog in April or May of 1999.
In my personal experience, blog is an outlet of creativity online. It is a communication device, source of information, entertainment and even income. It connects people. I learn new things and ideas everyday, gain more friends, and updated with the latest news. I know so many things I have to learn and blogs to discover. My blog is REBORN today. It is not to start but to continue its journey with yours.
Keep blogging guys!