Google offers various advertising services including keyword advertising, Google AdPlanner, and Google AdSense. Keyword advertising allows targeting of ads based on search terms. AdPlanner is a free media planning tool that helps identify relevant placements for target audiences. AdSense allows publishers like bloggers to display contextually relevant ads and earn money when ads are clicked. The "AdChoices" icon and label is being implemented by Google to comply with industry standards for online behavioral advertising and provide more transparency to users.