But first, from where did the term "blog" came, it was originated from "web log" that was coined by Jorn barger on December1997, then 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 Peterme.com in April or May 1999. Then people started to use it a noun or verb.
Back again, to what makes a website a blog or what content does any blog hold. Here are some web definitions of a blog:
"blogs provide commentary or news on a particular subject; others function as more personal online diaries. A typical blog combines text, images, and links to other blogs, Web pages, and other media related to its topic. The ability of readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual, although some focus on art (Art blog), photographs (photoblog), videos (video blogging), music (MP3 blog), and audio (podcasting)"
"A blog is basically a type of website, like a forum or a social bookmarking site. As such it is defined by the technical aspects and features around it, and not by the content published inside it."
also I found this video describing in a nice way what is a blog
then it is quiet simple if we put it all together like this: a blog is a type of website that is usually arranged in chronological order from the most recent ‘post’ (or entry) at the top of the main page to the older entries towards the bottom.
So, I thought for people who use blogger or has been blogging and don't know what is the whole story behind it, then they might have a glance about it. If you want know more see this article from Wikipedia, also you can find some tips if you are new to blogging here.
Finally, after I understood completely what is a blog, I decided what my blog will contain. It will contain a section of some technical articles, sharing some thoughts about what is going around us, some personal experience that we could talk about and some of my photography work.
Thanks a lot, and I hope you enjoy the ride with me!!