Anita Brearton and Sheryl Schultz have advice for other post-50 female entrepreneurs: Don’t give up, no matter how many ridiculous, insulting things are said to you by the mostly male venture capitalists you will inevitably encounter.

The two businesswomen, both entrepreneurs and both in their late 50s, should know. For the past year, as they looked for investors for their latest venture, Brearton and Schultz heard all kinds of unhelpful suggestions. 

Anita Brearton and Sheryl Schultz—known, among other things, for together heading up the Boston chapter of angel group Golden Seeds from 2009-2011—have now teamed up again, in a bid to make the marketing tech universe less overwhelming. Their Boston startup is CabinetM, which just launched a site for discovering new marketing software and quickly digesting what you need to know.

To help marketers deliver ROI in the form of revenue, reduced cost of acquisition, and/or customer lifetime value, the industry has created an abundance of tools that can be used to find, target, influence, and track customer activity and engagement.