When an author forays into selling e-books, he or she finds Amazon.com offers a unique service to its stable of booksellers.
Amazon encourages readers to report errors, misspellings and the like. Then the company compiles the complaints and e-mails the information to the author. The writer has the option to let the e-published material stand as is or fix the manuscript, uploading the revision and removing the source of complaint.
Voila! Errors disappear for future readers.
Fay Moore: I Want To Be a Writer 