A blog is short for web-log. Blogs started as online diaries, so the concept wouldn't have been foreign to Victorian ladies confiding their innermost thoughts to their journals.
Each individual entry is known as a blog post.
Anyone can start a blog. There are various software packages you can use to set one up - but you don't even have to bother with that to write a guest blog on Gransnet - just send us your idea, or your beautifully crafted (well, fairly beautifully-crafted) 300-or-so words. Ideal for something you want to get off your chest but which feels a bit long for a post on the forums.
There are lots of free sites designed to allow you to get your thoughts out to the world. Wordpress and Blogger come highly recommended for beginners; you may also want to look at Posterous, Livejournal and tumblr.
You can write your blog post under your real name (lots of journalists and public figures do this), under your Gransnet username if that seems right, or completely anonymously if you're going to express some deep dark thoughts that you don't want anyone to know came from you.
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