Diigo

Diigo  is a social bookmarking website which allows signed-up users to bookmark and tag web-pages.

Additionally, it allows users to highlight any part of a webpage and attach sticky notes to specific highlights or to a whole page.
These annotations can be kept private, shared with a group within Diigo or a special link forwarded to someone else. The name "Diigo" is an acronym from "Digest of Internet Information, Groups and Other stuff".

Flick Kick Football Kickoff

Kick it old school! See for yourself why Flick Kick® Football is the soccer game that people simply can't put down!

With intuitive swipe-to-shoot control, Flick Kick® Football is easy to play, but challenging to master! Flick your finger to curve, lob, drive and shoot the ball from all over the pitch. Test your skills in multiple modes, including Bullseye Mode and Time Attack! Update your team kit, ball, and fans to show your true colors!

MAME4droid - Beloved Arcade games on Android

MAME4droid  is developed  as a port of the MAME emulator.

It emulates arcade games supported by this version of MAME which includes over 8000 different ROMs.

Hacker's Keyboard - ... a real keyboard with arrow keys on your screen

A full 5-row keyboard including arrow and Esc/Ctrl keys, intended for tablets.
Are you missing the key layout you're used to from your computer? This keyboard has separate number keys, punctuation in the usual places, and arrow keys. It  supports multitouch for the modifier keys.

It provides working Tab/Ctrl/Esc keys, and arrow keys 

AirDroid - Control your Android Remotely

AirDroid allows you to access and manage your Android phone or tablet from Windows, Mac or the Web, wirelessly, for free. Transfer files between your devices, and share files to your friends.