Abstract: A set of dynamically-modifiable objects are maintained by a network system for a listing on an online marketplace. Each of the dynamically-modifiable objects includes a pointer referencing a corresponding one of a set of data records, each being associated with a respective asset for sale via the listing on the online marketplace. While the listing is active on the online marketplace, the network system can detect a change in status for a first data record that is referenced by a first pointer of a first dynamically-modifiable object. In response, the network system can identify a second data record not referenced by any pointers of the set of dynamically-modifiable objects and automatically update the first dynamically-modifiable object by de-referencing the first pointer from the first data record and referencing the first pointer to the second data record.

Abstract: A set of dynamically-modifiable objects are maintained by a network system for a listing on an online marketplace. Each of the dynamically-modifiable objects includes a pointer referencing a corresponding one of a set of data records, each being associated with a respective asset for sale via the listing on the online marketplace. While the listing is active on the online marketplace, the network system can detect a change in status for a first data record that is referenced by a first pointer of a first dynamically-modifiable object. In response, the network system can identify a second data record not referenced by any pointers of the set of dynamically-modifiable objects and automatically update the first dynamically-modifiable object by de-referencing the first pointer from the first data record and referencing the first pointer to the second data record.

Abstract: Bidding activity is analyzed over a duration in which multiple bids are received in the auction. A bid increment is dynamically determined for the auction in response to auction activity. An online auction system can utilize the bid increment to determine or suggest the next bid that can be received in the auction for purpose of supplanting the current bid.

Abstract: Bidding activity is analyzed over a duration in which multiple bids are received in the auction. A bid increment is dynamically determined for the auction in response to auction activity. An online auction system can utilize the bid increment to determine or suggest the next bid that can be received in the auction for purpose of supplanting the current bid.

Abstract: A method and system of optimizing portion bidding in a lot auction is provided. Disclosed examples include a bid detector configured to identify the occurrence of portion bidding in a lot auction. Further features can include communication module configured to communicate auction updates to the lot bidders participating in the auction.