We are a team of 4 trying to develop a browser based MMORPG. Its partially text based in a way like Might and Magic. The world map would be in 3D and actions would be automatically resolved. The game involves a lot of exploring. We are mainly design students and don't have much of a technical background. So our first choice to develop this game was Unity3D. Would like some advice on creating browser based game and game engines that can handle server-client interactions. Also, our game is centered around players creating communities and groups. The game should allow players to do so. While this is not our primary concern now, I would simply like to get some direction in terms of creating a browser based MMORPG.
Edit: Sorry for asking such a broad question, I will try to ask more specific questions
What technology can I use to build the client? Will simple HTMl/JS will do? How would Java work? Can I use XNA also to deploy to the web using Silverlight?
On the server side, what kind of software should we be looking to use? Will a linux box with LAMP work well? If I am using Unity3D can I communicate to an SQL database?
What kind of bandwidth am I looking at for roughly 100 users? The server will have to synchronize player position, chat, and events like quest completion and skill unlocking.