An electronic communication system (700, 800) with stimulus-based collaborative functions, comprising: a collaboration server communicatively linked to a digital communications network; data storage (720, 850) accessible via the digital communications network storing collaboration content for a collaboration session hosted by a collaboration service, wherein the collaboration content comprises presented content shared by an operator of a first collaboration client (730, 810) with an operator of a second collaboration client (732, 734, 736); and a collaboration data analyzer running on the collaboration server and configured to: process the presented content to determine a portion of the presented content selected by the operator of the second collaboration client for use in a supplemental collaboration event; and process the presented content to determine context for the supplemental collaboration event, wherein the collaboration server is configured to respond to user input from the second collaboration client to initiate booking on one or more digital calendars the supplemental collaboration event based on the portion of the presented content selected by the operator of the second collaboration client; wherein the system is configured to: create metadata by processing the portion of the presented content selected by the operator of the second collaboration client; and send invites for the supplemental collaboration event with the metadata a collaboration server communicatively linked to a digital communications network; data storage (720, 850) accessible via the digital communications network storing collaboration content for a collaboration session hosted by a collaboration service, wherein the collaboration content comprises presented content shared by an operator of a first collaboration client (730, 810) with an operator of a second collaboration client (732, 734, 736); and a collaboration data analyzer running on the collaboration server and configured to: process the presented content to determine a portion of the presented content selected by the operator of the second collaboration client for use in a supplemental collaboration event; and process the presented content to determine context for the supplemental collaboration event, process the presented content to determine a portion of the presented content selected by the operator of the second collaboration client for use in a supplemental collaboration event; and process the presented content to determine context for the supplemental collaboration event, wherein the collaboration server is configured to respond to user input from the second collaboration client to initiate booking on one or more digital calendars the supplemental collaboration event based on the portion of the presented content selected by the operator of the second collaboration client; wherein the system is configured to: create metadata by processing the portion of the presented content selected by the operator of the second collaboration client; and send invites for the supplemental collaboration event with the metadata create metadata by processing the portion of the presented content selected by the operator of the second collaboration client; and send invites for the supplemental collaboration event with the metadata