MIT is offering a free introductory (2nd year/sophomore) undergraduate analog electronics course.. entirely online.
March 5, 2012 through June 8, 2012, but it looks like you can still enroll if you want.
They expect students to be able to do basic math and physics*.
This is the text ($95 from Amazon.com) but it's NOT required.
- Prerequisites: In order to succeed in this course, students must have taken an Advanced Placement (AP) level physics course in electricity and magnetism. Students must know basic calculus and linear algebra, and have some background in differential equations.
MIT has been at the forefront in OpenCourseWare (OCW), and this takes it to a new level.
Best regards, Spehro Pefhany