We all develop applications that in some way retrieve or manipulate data... and now there are so many different technologies to choose from!
Looking for a good place to find information on Data Development? I've been working with this great to new site to help them get content... The site is just getting started... but I have to say they've made a pretty good first go. In talking with the site managers, they've started with just two basic topics, ADO.NET and XML, but plan to continue to add more topics and new content as it becomes available. There are some great articles, links to articles, and tutorials to get you started.
Check it out and let them know what you think!
PS. If you're interested... being a new community site, they are also looking for people interested in writing and helping to generate content...