While developing my Thematic Maps WordPress plugin I wanted a Settings link on the Plugins list page for quick access to the plugin options page: By default, WordPress displays Activate, Delete, Deactivate, and Update links on the Plugins page. To add additional links I had to leverage filters and hooks! I found a great reference [...]
Decided to stop including robots.txt in my WordPress sites for the time being. With Google presenting fully rendered pages in search results I prefer not blocking those webcrawlers and preventing them from finding required css and js files. The smart people at Yoast wrote up a good article explaining in more detail.