I have two feature requests:

1) What i am really missing is a possibility to flag modules I own.
That parameter added to the search options would considerably ease the burden of searching.
As bonus, in the case the above is implemented, a button kind of "Generate rack with all my modules" would be nice to have.

2) Right now a rack is either public or private. All or nothing. If i want to discuss a private rack with a buddy, i need to download the image and send it to him. What would be handy would be the possibility to give "view rights" on a rack to specific members of MG.

A Eurocrack Pusher: "The first time is for free" ;)