Abstract: Disclosed herein are systems, electronic tools and related methods for integrating the business rules, processes, and technology necessary to enable collaboration between personal office management applications, which are used by individuals on a daily basis to organize personal contacts, appointment calendars, and tasks, with sales force management applications, which are used to manage client and account contact information and coordinate the pursuit of business opportunities across an organization. Users of both applications can have their data electronically synchronized to share specifically designated information automatically within the applications. The information designated for synchronization can be of three types having different rules regarding their sharing among the applications, wherein the types include business contacts, sales force activities, and opportunity tasks.