This MetaFilter post has it right, this is one of the simplest ways to start blogging on the Internet. Tumblr gives you some quick buttons to blog photos, quotes, links or videos right to your Tumblr page. They also have bookmarks for your browser so you can add items to your Tumblr blog with one click.
You can check out my Tumblr blog at http://douglaswelch.tumblr.com.
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