Via Heather:

Sitepoint, the excellent web design publishing house based in Australia, have put their work and their hearts on the line for the victims of the Australian bush fires.  Please take advantage of this opportunity to help those affected while brushing up on your web skills too.

http://5for1.aws.sitepoint.com/

“To support the victims of the Australian bushfires we’ve created our
best book deal ever. For the next 3 days, you can pick any 5 books (in
PDF format) and pay for only 1. That’s about $150 worth of books for
just $29.95!

100% of the proceeds from this sale will be donated to the Australian
Red Cross Victorian Bushfire Appeal..

Yes, we’re serious: 100%. If you buy 5 PDFs for $29.95, then $29.95 is
donated. Our ambitious target is to raise more than $50,000 to help
the families and communities affected by this tragedy.

We’re offering our entire range of books – from PHP to Project
Management – for the sale; designers, developers, freelancers,
managers, and business owners alike will all be able to choose a
selection of professional books to enjoy.

You have just 3 days to treat yourself to this amazing deal, courtesy
of SitePoint, and know that you’re helping Australian families in
need. What are you waiting for?”