A method is disclosed of providing geo-relevant information based on a
mobile device. A data item is received from the mobile device, the data
item characterized by a geographic relevance and comprising at least one
component. The data item is geo-coded, wherein the geo-coding includes
identifying the at least one component; associating the identified at
least one component with a geographic region; determining at least one
group of at least two points corresponding to the geographic region, the
at least one group of at least two points defining a plane enclosing the
geographic region; and augmenting the data item with data representative
of the determined at least one group of at least two points defining a
plane. Relevant information is determined based on the augmented data
item. The relevant information is provided to a user of the mobile
device.