Every time I come to know about people asking what is a blog. Generally definition of blog is a page on web which contains, image, word and one person thought on a topic or on many topic. Blog not cover only one topic, it’s cover all topic in which the person was interested who created blog. E.g I am very interested in Technology, SEO, Search Engine, so if you check mine blog , you will find I have written not only in SEO but also on iOS device & android device. Blog always created by one person on any blogging site like, WordPress Blog, Blogger Blog, Wiki Blog and many other blogging service might be person host is own blog on his own server. Blogger always try to written on any topic and updated his blog pretty days. So that his blog & reader get always new stuff.
Here is some more accurate definition of What is a Blog
‘A weblog is kind of a continual tour, with a human guide who you get to know. There are many guides to choose from, each develops an audience, and there’s also comraderie and politics between the people who run weblogs, they point to each other, in all kinds of structures, graphs, loops, etc.’
A blog is basically a journal that is available on the web. The activity of updating a blog is “blogging” and someone who keeps a blog is a “blogger.” Blogs are typically updated daily using software that allows people with little or no technical background to update and maintain the blog. Postings on a blog are almost always arranged in chronological order with the most recent additions featured most prominently.’ Source For me a blog is a place to share your passion with others. It facilitates the exchange of Ideas with other interested parties. Perhaps my definition is a little more abstract than others’ but that’s how I see it.