Drop-in titles (also known as crash or add-in titles) continue to grow--and getting the word to booksellers and librarians about these sudden new books or titles with major last-minute changes is ever more problematic. NBN releases new title information to accounts via Nuts and Bolts, but not all territories are covered by this release of information. Markets such as libraries and independent booksellers may not have access to such information, thus causing your momentum to stall in those markets.
For a fee of $150, announcements about drop-in titles will appear in the Shelf Awareness and Unshelved newsletters--and then reside in the Shelf Awareness drop-in title database web site. The web site is fully searchable and will archive all drop-in listings.
Publishers who want to learn more about the drop-in title database should go to: http://www.shelf-awareness.com/howto.html.