Amazon.com's automated "Tom May" sent me this today, for example:
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We've noticed that many of our customers who have purchased The Final Days: The Last, Desperate Abuses of Power by the Clinton White House also enjoy books by Janet Scott Barlow. For this reason, you might like to know that Janet Scott Barlow's The Nonpatriotic President: A Survey of the Clinton Years is now available. You can order yours by following the link below.
The Nonpatriotic President: A Survey of the Clinton Years List Price: $12.95
Price: $12.95
Book Description
The Nonpatriotic President: A Survey of the Clinton Years is a collection of essays covering Bill Clinton's years as president, starting with his inauguration in 1993, and ending with the 2000 presidential campaign. The book examines, sometimes with humor, a wide range of Clinton-centered issues:...
And then it recommended a whole host of nice conservative books...
Also, given what Stars N Stripes noted in post #5 (also see post 9, 10, & 12), I would say that while it might not be an "evil commie plot", it certainly seems that there is a notable bias.