For design software and design-related topics, there is skillshare.com. SkillShare has really grown in popularity over the past year. The quality can vary, as you'd expect. But then I've found that to be the case with Lynda.com too. It's inevitable given the huge number of courses.
I'm a subscriber to Skillshare and think it's good value (just $9.99 a month, or $8 a month if you subscribe yearly).
Other sites that cover similar design topics and design software are: digitaltutors.com and tutsplus.com (I've not used either of these though).