Providing a website featuring on-line non-downloadable software that enables users to collaborate on projects, communicate with each other, provide quotes, and process payments; Providing information relating to on-line non-downloadable software to facilitate electronic communication between individuals provided via the Internet; Providing on-line non-downloadable software for end-to-end collaboration between stakeholders on all sides of a business transaction, namely, purchasing, selling, vendor approval, accounts receivable, account payable, contract negotiation, and shipping; Providing temporary use of online non-downloadable middleware for providing an interface between buyers and sellers when engaging in complex transactions; Providing temporary use of online, non-downloadable enterprise software for connecting every stakeholder on all sides of a business transaction on a single, secure platform