Tuts+ is a veritable goldmine for knowledge around design and technical matters. Their course which offers to teach you the basic in just 30 days comes with daily videos comprising of about 10 minutes or so each, which is more than manageable. The videos are presented by the likeable Jeffrey Way who is a great teacher and takes the time to explain the ins and outs of code (even though we do think his choice of t shirt is questionable).
The home of web development W3Schools is a foundational resource for both those just beginning and those who are well versed in web languages. W3schools utilises the same coding area method as Codeacademy but in a much more austere fashion. This one is for those who are serious about developing their skills and want to progress at a structured level. W3Schools offers a wide range of languages to learn which makes it a great long term resource as it keeps up to date with new coding such as HTML5 and CSS3.