You should blog even if you have no readers
Author here. You may also want to check out a more recent post I wrote about blogging that focuses on those "side benefits": <a href="http://nathanmarz.com/blog/break-into-silicon-valley-with-a-blog-1.html" rel="nofollow">http://nathanmarz.com/blog/break-into-silicon-valley-with-a-...</a>