Tumblr, Twitter, etc - For stream-of-consciousness bookmarking, these sites use a special kind of metatagging called "hash tags" (created by putting a # symbol in front of a word, like "#lovetoknow").
Tumblr is another blogging site that allows you to express yourself with as many words as you need and allows you to upload pictures as well.
Tumblr is a quick way to blog, share pictures, let others read your favorite quotes, and more.
Cnet calls Tumblr "Microblogging done right."
The key is that the communication needs to be two-way, whether you have a video blog on YouTube or a "micro-blog" like Tumblr.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.