AdAway is an open source ad blocker for Android using the hosts file. It needs Android >= 2.1 and ROOT access.

Features:

• AdAway is Open Source and Free Software (GPLv3+)
• AdAway lets you select your own sources of hosts files
• You can add exceptions to your Whitelist if an app is not working when specific hosts are blocked
• You can define extra hostnames in your own Blacklist
• You can add your own (hostname, IP)-pairs in the Redirection List

Requirements

• Android version: 2.1
• ROOT required
• Read/Write access on system-Partition

Problems can occur on some HTC devices when system-Partition is not writable!