How-To Tips on Building Web 2.0 Apps with AJAX. Web 2.0 developers, get step-by-step guidance on building applications with AJAX (Asynchronous JavaScript and XML) with this Java Pet Store 2.0 application article and demo. more>

Software as a Service Tutorial SaaS Market ERP Servers: In this letter, I plan to turn my attention to software as a service (SaaS) — an exciting delivery model for software. In the most basic terms, SaaS involves delivering and receiving software as bytes over the Internet instead of buying and installing software locally as bits. Given the recent hoopla over SaaS, it is no exaggeration to say that it has been a big hit in many areas. Many consumers use SaaS every day with services like Google, Yahoo!, and eBay, but now those services and many others in the ERP space are moving into the enterprise. In case there are still any SaaS doubters, let's take a moment to examine some of the numbers. more>