AdBlock is a really useful ad blocking extension for Google's Chrome browser. It helps to block any annoying ads from interrupting your web browsing experience. AdBlock is a very powerful tool that blocks almost every ad you can think of, including pre-video ads on YouTube. When AdBlock is running and blocking ads, you will see the AdBlock logo glow red in your Chrome taskbar.

Key features include:

• Private: AdBlock requires no personal information to run, and doesn't monitor your browsing.
• Allow Ads: AdBlock makes white-listing easy.
• YouTube Video Ads Removal: AdBlock removes YouTube video ads before you see them.

The extension runs very well and can be configured to suit your requirements. You can create filter lists to be configured for adding or deleting sites from within the add-ons panel of the extension. It is worth mentioning that there is a need to filter sites that require Flash pop-ups to operate correctly whilst AdBlock is running, but, overall, AdBlock does exactly what it says on the tin. It is very powerful and very effective. If you want an ad-free browsing experience, then AdBlock is a good tool to have in your arsenal of weapons.