I've been doing web development since 2009, and I am still involved in part-time web projects. I've started with simple HTML/CSS pages, then moved to PHP, later I had some experience with ActionScript (Adobe/Shockwave Flash). My latest web development experience is Ruby on Rails and ASP.NET MVC, however I still develop in PHP.
SEO was a vital part of almost all my web projects. Here there are some of my solo works, and those I completed with a small team.