The basics of search engine optimisation are, well, basic: Build good, easy-to-find content, and promote it via social media, and they will come. But there's nothing wrong with adding to your arsenal SEO tools that will help you create more targeted content and a more visible website.
SEO tools - News, Features, and Slideshows
Google Analytics lets organisations of all shapes and sizes measure the performance of their websites. There's a lot of data in there--and even more that you can do with that data once you've extracted it. These tips will help you get started with Google Analytics.