Customers of Amazon.com Inc and other e-book retailers on Tuesday began receiving notices of their shares of a $166 million settlement with five of the biggest book publishers, all accused of conspiring with Apple Inc to raise e-book prices. For many customers, the sums took the form of credits to be spent on books through various e-book retailers, including Amazons Kindle Store. Many were underwhelmed with their new found loot, and hundreds who received their credits from Amazon took to social media to deride their paltry share. Tweeted another: I got a whopping $5.11 from the US vs. Apple et al. ebook antitrust case.