Google announced today a definitive agreement to acquire DoubleClick, a global leader in digital marketing technology and services, for $3.1 billion. The acquisition will combine DoubleClick's expertise in ad management technology for media buyers and sellers with Google's leading advertising platform and publisher monetization services.

The combination of Google and DoubleClick will offer superior tools for targeting, serving and analyzing online ads of all types, significantly benefiting customers and consumers:
- For users, the combined company will deliver an improved experience on the web, by increasing the relevancy and the quality of the ads they see.
- For online publishers, the combination provides access to new advertisers, which creates a powerful opportunity to monetize their inventory more efficiently.
- For agencies and advertisers, Google and DoubleClick will provide an easy and efficient way to manage both search and display ads in one place. They will be able to optimize their ad spending across different online media using a common set of metrics.

Both companies have approved the transaction, which is subject to customary closing conditions, and is expected to close by the end of the year.