Tor Space Opera Promotion
Tor has 7 space operas on sale for $3.99/ea. through May 8. Store links from promo page.
Bowl of Heaven - Gregory Benford, Larry Niven
Earth Unaware - Orson Scott Card, Aaron Johnston
Empress of Eternity - L. E. Modesitt, Jr.
A Fire Upon the Deep - Vernor Vinge
Hellhole - Brian Herbert, Kevin J. Anderson
The Price of the Stars: Book One of Mageworlds - Debra Doyle, James D. Macdonald
Sun of Suns - Karl Schroeder