One of the key pieces that Minecraft is currently missing is Map Sharing. I hope to build this tool over the next few weeks. The goal is for users to be able to upload a .zip file containing a map (or just an interesting seed), and allow others to upload, vote/rate, and comment on maps provided by other users.

Minecraft Map Sharing Feature Goals

• Simple Registration, email, username, password
• Map Browsing - Browse maps by date, tag, rating, downloads.
• Map Upload - Upload a seed or map, attach screenshots of your map or seed.
• Comment on Map
• Rate Map
• Social Integration - Plus+ or share maps
• Connect Maps to Minecraft Overviewer versions?