Blogs (website or part of website) are interactive and informal way of interaction. Blog is like a daily journal in which you can post about anything you wish and is frequently updated.
Micro Blogging is a form of multimedia blogging that allows users to send brief text updates or micromedia such as photos or audio clips and publish them. Some micro-blogging platform have limits as to the maximum number of characters per post.
Twitter for example limits you to 140 characters per tweet. Because of this limitation, many long URLs in posts are shorten using URL shorteners such as bit.ly.
Both bloggers and micro-bloggers have a variety of third party software or plug-ins for their browsers to simplify the process.
Refer to this link on how to micro blog
http://www.wikihow.com/Learn-About-Micro-Blogging