There is an opportunity to buy around £250-worth of Make ebooks focused on electronics for about £10 — it’s a pay what you want deal. More details at Score Awesome Electronics eBooks with Humble Bundle.
This is, needless to say, a fantastic opportunity to get a great set of books, not the least of which is Vol1-3 (the full set) of the Encyclopaedia of Electronic Components. The deal also includes a discount on a subscription to Make magazine.
You’ll need to act reasonably quickly; the deadline is ’10:59am PST on Wednesday, June 29′ – which I think is 18:59 in British Summer Time.