Why should you optimize your blog? Optimizing it will increase the blog's rankings on regular search engines and on search engines for blogs and RSS. It will also increase traffic from more locations such as social networks and social bookmarking sites.
If you want to optimize your blog for search engines, you should fill the URL structure with words and try to avoid numbers and extraneous characters. You should keep the URL simple, short and easy to remember. When you write the titles for your posts be careful what keywords you use. If your blog is not an Adsense blog, make sure that keywords will not determine your content. Use Google Suggest to find good keywords.
Pinging blog search engines will also increase your traffic. You can do this through ping-o-matic or pingoat. You can use Feedburner, so every time you post something on your blog it will be automatically showed in blog search engines like Technorati. Also make sure that post titles will appear in the title tag and append the title tag with the most important phrase for your blog. Make sure you use post titles as the permalink.
Another thing you should optimize in your blog are the categories. When you create a category, make sure you use keywords in the titles. You should also put your article in the appropriate category. On a blog, the categories are an important characteristic that identifies the page type as a blog. Nonetheless, make sure your blog's information architecture provides other contextually relevant means of navigating through the site.
Another way to make users visit your blog is to make sure you have implemented RSS feeds. Offer RSS and Feed Subscription Buttons! You can also offer RSS to users using email. You should also decide if you will offer full articles or only a part of them on the RSS feeds.
These are just a few tips on how to optimize your blog.