Methods and systems for dynamically managing requests for computing capacity

A computer-implemented method for dynamically managing requests for computing capacity provided by a program execution service (PES), the method comprising:

• under control of the PES that provides a plurality of computing nodes that are each configurable to execute one or more programs of multiple users of the PES, the PES further providing a plurality of user-customizable program services:
• receiving a request from a first user to share, with users of the PES, a first virtualization environment generated for the first user, the first virtualization environment including an operating system and at least one program service provided by the PES;
• updating a list of virtualization environments available for selection by users of the PES to provide an updated list of virtualization environments that includes information related to the first virtualization environment;
• providing the updated list of virtualization environments to users of the PES;
• receiving a selection of the first virtualization environment that is included in the updated list from a second user of the PES;
• and
• generating a second virtualization environment for the second user, the second virtualization environment based at least in part on the first virtualization environment.

Non-transitory physical computer storage comprising computer-executable instructions that, when executed by a computing system, direct the computing system to perform operations comprising:

• receiving a request from a first user to share, with users of a program execution service (PES), a first virtualization environment generated for the first user, the first virtualization environment including an operating system and at least one program service provided by the PES, the PES providing a plurality of computing nodes that are each configurable to execute one or more programs of multiple users of the PES, the PES further providing a plurality of user-customizable program services;
• updating a list of virtualization environments available for selection by users of the PES to provide an updated list of virtualization environments that includes information related to the first virtualization environment;
• providing the updated list of virtualization environments to users of the PES;
• receiving a selection of the first virtualization environment that is included in the updated list from a second user of the PES;
• and
• generating a second virtualization environment for the second user, the second virtualization environment based at least in part on the first virtualization environment.