The people on Yahoo! Answers have spoken! The vote is in and the best answer to your question:
what is a blog?
is from Haris:
A blog is a personal diary. A daily pulpit. A collaborative space. A political soapbox. A breaking-news outlet. A collection of links. Your own private thoughts. Memos to the world. Your blog is whatever you want it to be. There are millions of them, in all shapes and sizes, and there are no real rules. In simple terms, a blog is a web site, where you write stuff on an ongoing basis. New stuff shows up at the top, so your visitors can read what’s new. Then they comment on it or link to it or email you. Or not. A blog gives you your own voice on the web. It’s a place to collect and share things that you find interesting— whether it’s your political commentary, a personal diary, or links to web sites you want to remember. Many people use a blog just to organize their own thoughts, while others command influential, worldwide audiences of thousands. Professional and amateur journalists use blogs to publish breaking news, while personal journalers reveal inner thoughts. The blogging experience is about not only putting your thoughts on the web, but hearing back from and connecting with other like-minded folks. Sometimes you just want to share a photo. There’s a button for uploading photos in the Blogger interface. Just click the photo button to upload a photo from your computer. If the photo you’d like to put on your blog is already on the web that’s fine too. Just tell us where it is. You can also upload photos by attaching them to any email sent to your own mail-to-blogger address. And you can send camera phone photos straight to your blog while you’re on-the-go with Blogger Mobile. The fastest way to understand blogging is to try it out. We’ve worked really hard to make it really easy for you. Just click the link below, and you can be part of the phenomenon that’s transforming web and media to a participatory activity in less than five minutes. Seriously. What will happen then? Who knows. It might be fun, though. And remember: Blogger is totally free, and if you have trouble, just click the Help button from any screen, and you can find the answer you’re looking for—or even ask our dedicated support staff. ——- You could visit my blogpage for starters - worth starting anywhere 
http://blog.360.yahoo.com/findme_friends
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