ok, so here are a few ways to collect stats for your wordpress blog. pretty basic stuff, but very valuable
there are plugins for wordpress that help you to set these things up: one is ‘google analytics for wordpress’ this will let you put your tracking code in your blog without needing to be able to code anything.
you will need an xml sitemap to submit your site to google webmastertools, you can get a plugin called ‘google xml sitemap’ that will make one for you and will keep it up to date every time you make a new post =)
once you start using these services then you can collect all sorts of information – you can see how many people come from your rss feed, which items are most popular on your blog, how many people come through search engines, which engines they come from, etc.
once you have this data then you can figure out the posts that are popular, and tweak them to perform better in searches. you can also tweak the posts that arent popular to perform better in search and you can write more stuff like the popular posts!