An apparatus receiving at least search strings, location data, time stamp data and additional data. Based on the received data, the apparatus calculates a number of display results, an average distance traveled, an average time taken, an average speed, an average time required, a first optimal radius, a region of overlap, a first revised optimal radius, and a second optimal radius. Based on the calculated data, the apparatus transmits first identification data, second identification data, a first number of search results for said first identification data, and a second number of search results for said second identification data, the first revised optimal radius, and the second revised optimal radius.