13. A system comprising: a processor; and a computer-readable medium having stored therein instructions which, when executed by the processor, cause the processor to perform operations comprising: receiving text, wherein a portion of the text comprises an abbreviation; associating a sender of the text with one of a plurality of groups, to yield a sender group; associating a recipient of the text with one of the plurality of groups, to yield a recipient group; and upon determining a difference in the sender group and the recipient group, wherein the difference indicates distinct cultures of the sender and the recipient: expanding, the abbreviation based on the distinct cultures, to yield expanded text; transmitting a message to the recipient which comprises the abbreviation and the expanded text; modifying, via the processor, a display presented to the sender in which the expanded text is added to the text having the abbreviation; and presenting a first advertisement to the sender based on the text and the sender group, wherein the first advertisement is distinct from a second advertisement presented to the recipient.
13. A system comprising: a processor; and a computer-readable medium having stored therein instructions which, when executed by the processor, cause the processor to perform operations comprising: receiving text, wherein a portion of the text comprises an abbreviation; associating a sender of the text with one of a plurality of groups, to yield a sender group; associating a recipient of the text with one of the plurality of groups, to yield a recipient group; and upon determining a difference in the sender group and the recipient group, wherein the difference indicates distinct cultures of the sender and the recipient: expanding, the abbreviation based on the distinct cultures, to yield expanded text; transmitting a message to the recipient which comprises the abbreviation and the expanded text; modifying, via the processor, a display presented to the sender in which the expanded text is added to the text having the abbreviation; and presenting a first advertisement to the sender based on the text and the sender group, wherein the first advertisement is distinct from a second advertisement presented to the recipient. 15. The system of claim 13 , wherein the expanded text is a group-specific term related to the selected group.