18. A server comprising: a non-volatile machine-readable medium to store an electronic document that is edit accessible by multiple users from client devices communicatively coupled to the server; and a control module to receive a lock command from a client device of the client devices, in response to an edit of the electronic document by a user of the multiple users, wherein the control module is to lock the electronic document to prevent edit access by other users of the multiple users after receipt of the lock command, the control module allowing the other users to add a comment to the electronic document despite the lock to prevent edit access, the control module to release the lock to enable edit access by a different user of the multiple users in response to the different user attempting to edit the electronic document and a time period having expired since an activity by the user in the electronic document.
18. A server comprising: a non-volatile machine-readable medium to store an electronic document that is edit accessible by multiple users from client devices communicatively coupled to the server; and a control module to receive a lock command from a client device of the client devices, in response to an edit of the electronic document by a user of the multiple users, wherein the control module is to lock the electronic document to prevent edit access by other users of the multiple users after receipt of the lock command, the control module allowing the other users to add a comment to the electronic document despite the lock to prevent edit access, the control module to release the lock to enable edit access by a different user of the multiple users in response to the different user attempting to edit the electronic document and a time period having expired since an activity by the user in the electronic document. 19. The server of claim 18 , further comprising saving the edit of the electronic document by the user in the non-volatile machine-readable medium prior to releasing the lock.