Seattle-based Don't Blink Media, a provider of interactive advertising and search engine optimization services, has received an investment from Highmark Investments LLC. Don't Blink said that it raised the round to advance its products and services and to further market expansion. Don't Blink provides search engine marketing and interactive marketing tools, media buying, and other services. Don't Blink was advised by Mercanti Group in the transaction. The size of the investment was not disclosed.