Patent ID: 7979504

Claim:
A system, comprising: a first network interface via which a plurality of remote terminals can access the system; a load balancer; a web proxy processor configured to selectively block an inbound user browser request or route an inbound user browser request to a destination server; a cache cluster system configured to cache data and states for access by one or more system components; a database storing information regarding a plurality of items; and program code stored in computer readable memory, which, when executed is configured to: provide users with allocation information for the plurality of items; receive a plurality of access requests for items from corresponding users, wherein the plurality of access requests are associated with corresponding offer amounts for one or more of the plurality of items; and determine an exchange amount the users are to provide for the items based at least in part on a central tendency of the offer amounts and on how many unallocated items are available; wherein the central tendency is calculated at least in part by: calculating an average of at least a portion of the offer amounts, a median of at least a portion the offer amounts, a trimedian of at least a portion the offer amounts, a mode of at least a portion the offer amounts, and/or a mean of at least a portion the offer amounts; and wherein the system is further configured to transmit over the network to the corresponding users an indication as to the exchange amount the users are to provide.