What you need to know - 07/18/11

Adobe acquires EchoSign, digital signature solution; see the Venture Shift cheat sheet

Adobe acquired electronic signature solution EchoSign, to be integrated into the Acrobat family.

Daily deal site BuyWithMe acquired Edhance.com, a cash-back rewards program for college students.

Mobile and social media company TigerSpike sold an $11 million minority share to Aegis Media to expand globally.

Check out the Venture Shift cheat sheet, a look at several early-stage micro-venture capitalists VatorNews has spoken with in the recent past.

Watch the Wipit founders participate in Vator Box, our fast-paced show where entrepreneurs present their promising ideas or early-stage businesses in front of prominent angels or investors in Silicon Valley. #mobilepayments

Local business-focused e-commerce company Zappedy was acquired by Groupon. Terms of the deal have not been disclosed.