[jefflinwood]

It sounds like you have a good idea of what you want to build, which is great!

Now it sounds like the thing you have to do is figure out the data architecture - that could help make the rest of your technology stack decisions for you. For instance, can your data structures be modeled in something NoSQL like MongoDB or CouchDB? To me, it sounds like you'd want to use a relational database, but it would be fun to experiment!

[adidum]

yes, that is sound logic. The data structure model is very important to me. I would like to create a framework that I can reuse, where data is modeled semantically. I can't believe there isn't such framework out there already. I'm thinking TopicMaps. Java might be the top choice if going this way. Thanks for the idea.