In one embodiment, a technique is provided for wireless position determination wherein identification information and positional information about wireless beacons is downloaded to a local database of a wireless computing device from a central database. The local database is usable by a wireless positioning system of the wireless computing device to estimate a position of the wireless computing device. A receiver unit of the wireless computing device may receive signals from wireless beacons that include a least one new wireless beacon not included in the local database. The wireless positioning system estimates positional information of the at least one new wireless beacon based on the position of the wireless computing device. Identification information and positional information for the at least one new wireless beacon is added to the local database. Thereafter, a contribution may be uploaded to the central database for the at least one wireless beacon, to further build the central database.