New features offered by Google's AdWords 3.0 software may be able to help internet advertisers to further target their intended audiences.

One of the new AdWords facilities will allow consumers to specify on which websites on the Google network they do not wish their advertisements to appear.

Entitled 'campaign negative sales', the service applies to all advertisements utilised in users' campaigns and could help them ensure they are not associated with any websites they deem unsuitable.

Conversely, advertisers will now also have the chance to target specific websites. By creating an ad group, firms will be able to focus on websites based on criteria such as their location and language, increasing their ability to make best use of search engine optimisation.

Meanwhile, Adwords 3.0 users will also have the ability to 'pause' the use of specific adverts, keywords and even which websites their ads feature on.

HTML and CSV exports have also been updated to give advertisers the ability to track the progress of their ad campaigns and share this information with those who do not have the AdWords Editor service.

The software is currently available for Windows 2000, XP and Vista, with a Mac version due to be released in a few weeks.

The AdWords campaign software is available via free download for all Google's advertising clients, allowing them to edit their advertising campaigns offline.