These are accessible & enjoyable. I am on lecture 12 and learning a lot. Warning: some topics, such as sorting on a machine with unrealistically huge word size, are of only theoretical interest (but it's great theory).
Having watched some other MIT lecture sequences, I'm really looking forward to this.<p>Data structures are one thing I believe every software engineer should have a solid foundation in, and it looks like these lectures will provide a nice additional resource.
See the corporate sponsorship banner at the bottom, on an MIT course website? Fascinating.<p>Edit: it is actually a Danish nationally funded research lab.