For a list of free titles, go to the Rocket Library.

CNN: Top 10 free e-books

The Portuguese winger had already gone close with a free-kick, and after four minutes his rocket header from a Giggs corner was brilliantly saved by the left arm of Julio Cesar.

BBC: Inter Milan 0-0 Man Utd

Nothing is free, but the cost is relative to not hopping aboard the greatest rocket ship ride since the advent of the web, and the rise of the PC before that.

FORBES: How To Create An iPad E-Book App

The combination of the free-revving V6, a feather-light clutch and precise gear feel makes the IPL a rocket to drive.

FORBES: 2011 Infiniti IPL G Coupe 6MT Test Drive and Review

Scientists said they launched the satellite from midair to save money, compared with an expendable rocket launched from the ground, because it doesn't take as much fuel to break free of the planet's gravity.

WSJ: NASA NuStar Telescope to Hunt for Black Holes

Players will find that Tap Rocket offers both of these, as the 99 cent price point places it just out of the free-to-play zone and the colorful rainbow-propelled adventure is a vivid short-session blast.

FORBES: Tap Rocket: Rainbows, Simplicity, Style