The best way to improve as a blogger is to learn from other bloggers. I'd suggest you follow several blogs in two categories:
Blogs about Blogging
I follow problogger.net, dailyblogtips.com, blogussion.com, and a few other blogging gurus. I don't agree with every single thing they say. In fact, I don't even read every single post--I just keep up with the feed and read posts that catch my attention. Anyway, I've learned a lot of helpful tips from these blogs.
Blogs in Your Niche
I have a strength and fitness blog, so I also follow a few other blogs in this niche. I like to know what my peers (or competitors, if you prefer the term) are saying. Here are a few reasons to do this:
*You may get an idea for a new post of your own.
*You might disagree with what another blogger says and respond with your own post.
*Your fellow blogger may have run across a product that you also want to promote.
Hope this little tip helps.