Bloggers write for different reasons. Some have ideas which need expressing. Some have a life worth sharing, and a number of people interested enough with whom they can share it. I have neither, but I have a desire to put things out there, which forces me to keep at it.
Some, though have the skill for it, which mere mortals like yours truly only aspire towards. A blog by someone with a genuine gift for words, poetry and ideas. The Girl In The Hat
(Link via various sources)