This page presents a few resources I find useful and/or interesting; most have to deal with software development, so if this is not your main interest, you should move on and spend your time somewhere else...
If you are interested in software development and associated topics, Joel on Software is worth a visit. Among the articles I loved to read are :
and a bit off topic :
Joel Spolsky also wrote a book on User Interface Design, which is also in part available as a series of Joel on Software articles.
also known as AGG is a very powerful Open Source graphics library which provides high qualitfy rendering (better than what can be achieved with Microsoft GDI+).
I live in Switzerland and I order most specialised books directly from Amazon.de, which ship at no charge (for orders above 20 EUR) and without tax, as long as the total amount of taxes does not reach CHF 5 (books are charged at 2% in 2004).
Computer Graphics
Feng Yuan's Windows Graphics Programming, which is the bible on GDI, answering all question which crossed my mind on the topic. It is really a great book with very detailed information, including low-level internals and hints to avoid the known bugs and limitations, e.g. when dealing with fonts.
Adobe PDF Reference, Third Edition covers version 1.4 of the standard (also available online, draft of PDF 1.5 is here).
Adobe PostScript Reference Manual, Third Edition covers PostScript Level 3 (also available online here).
Databases
Inside SQL Server 2000 is a must-read, even for people who don't use Microsoft's SQL engine.
Pragmatic ADO.NET is one of the best books on ADO.NET I have read up to date.
Patterns
Design Patterns by the Gang Of Four, this is the bible for anybody interested in software patterns.
.NET
Essential .NET from Don Box. There are a lot of books on the topic, but I liked this one most, perhaps because of Don Box' efficient way of explaining things.
C# Essentials from Albahari, Drayton & Merrill. This is the most compact, yet fully useable C# reference I have found in the bookstores.
Microsoft technologies
Writing Secure Code 2 should be read by any Microsoft employee. It is full of useful information on how to make code more secure. I wonder why Microsoft products are not safer to use, since they know how to do it.
Developing International Software 2 is all about I18N and L10N. It is not as thorough as I hoped and .NET is only covered marginally. A third edition would be great.