I recently purchased OptinMonster for our website. I’m very happy with SumoMe but the main benefits that Optin Monster has to offer that make it compelling are its nicely animated exit-intent plugins, as well as the ability to show specific pop-ups on specific pages AND to A/B split test them. If you’re not familiar with what an exit-intent pop-up is, it is a pop-up that shows only the moment that it detects a visitor is about to leave a web page. It understands this because it watches the visitors mouse movements and a mouse movement that is usually, quick, up and the the left tends to indicate that the visitor is about to leave the site. Here’s an example of what a high converting pop-up might look like, as shown by OptinMonster’s higher-end (and crazy expensive) competitor, Bounce Exchange. 

We suggest starting with two types of free offers. One top-of-the-funnel, educational piece of content like an ebook, and one middle-of-the-funnel offer to let someone speak with your sales team to get a demo or a quote or a free consultation or whatever works for your specific business. By having these two types of offers on your website, you can capture potential leads and convert customers that are in different stages of the buying process.
GoTo.com (renamed Overture in 2001, and acquired by Yahoo! in 2003) created the first search advertising keyword auction in 1998.[19]:119 Google launched its "AdWords" search advertising program in 2000[20] and introduced quality-based ranking allocation in 2002,[21] which sorts search advertisements by a combination of bid price and searchers' likeliness to click on the ads.[19]:123

If you’ve been following along from the beginning, you have now learned how to grow your email list to epic proportions, you’ve segmented your list so that your emails are highly relevant to each individual subscriber, and you’ve learned how to send amazingly effective emails that have a high open-rate. Now you are ready to automate the process and turn your campaigns into money-making machines!
Well, charity: water took an alternate route. Once someone donates to a charity: water project, her money takes a long journey. Most charities don't tell you about that journey at all -- charity: water uses automated emails to show donors how their money is making an impact over time. With the project timeline and accompanying table, you don't even really need to read the email -- you know immediately where you are in the whole process so you can move onto other things in your inbox.

Many consumers have reservations about online behavioral targeting. By tracking users' online activities, advertisers are able to understand consumers quite well. Advertisers often use technology, such as web bugs and respawning cookies, to maximizing their abilities to track consumers.[60]:60[95] According to a 2011 survey conducted by Harris Interactive, over half of Internet users had a negative impression of online behavioral advertising, and forty percent feared that their personally-identifiable information had been shared with advertisers without their consent.[96][97] Consumers can be especially troubled by advertisers targeting them based on sensitive information, such as financial or health status.[95] Furthermore, some advertisers attach the MAC address of users' devices to their 'demographic profiles' so they can be retargeted (regardless of the accuracy of the profile) even if the user clears their cookies and browsing history.[citation needed] 
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