How do you feel about blogging?

I am starting to prepare for a webinar I’ll present in April about Blogging.  So I’m online doing research about blogs, the good, the bad and the ugly.  This blog is actually a wholly-contained part of my marketing website and I still find it difficult to find enough time and enough interesting and worthwhile material to write about to make it a compelling destination.  Have you invested time and energy into blogging and has it paid off for you?  Would love to hear your experience…pro and con!