Abstract: Personal digital assets are collected, managed, shared and archived on a social network using a client interface for registering a user and performing tasks. User sources are defined and assets are collected and organized chronologically as eternal Time-lines. Permission level rules are associated with each asset and Time-line and a plurality of subjective groups distinguished by their relation to the user are defined. Chosen assets of the Time-line are tagged with assigned keywords recognized by the social network service, thus sharing them with the tagged entity according to the permission level rules. Authorized members are invited to contribute and share assets with the founder of an established Time-line, and data storage is optimized in a way that every tag added to an assets appears on every instance it has on other Time-lines sharing that asset, such that shared assets are saved to the data storage only once.