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9 Reasons Your Marketing Agency's Retainers Aren't Bigger

Hubspot

It's why I started HubSpot's agency partner program in 2008, and why I've launched an agency partner program at my new company, Databox. Just a few years ago, it was possible only to measure CTR of paid ads and not ultimate conversion rates. I have hundreds of stories like this. 9 Reasons Your Retainers Aren't Bigger. Now that's easy.

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The Ultimate Glossary: 44 Email Marketing Terms Marketers Must Know

Hubspot

Blacklist - A list that denotes IP addresses as spammer IPs, impeding email deliverability. CTR (Click-Through Rate) - The percentage (the number of unique clicks divided by the number that were opened) of recipients that click on a given URL in your email. Copyright © 2008 Constant Contact, Inc. 25 per email address.