• Microblog –is a broadcast medium in the form of
blogging. A microblog differs from a traditional blog in that
its content is typically smaller in both actual and aggregate
file size.
• Microblogs "allow users to exchange small elements of
content such as short sentences, individual images, or video
links".
• Twitter is currently the most popular
microblog service and lets users post
entries up to 140 characters long.