On the Web: 7 Things You Should Know About Google +1

Very few people are talking about this, but of all the possible places for retailers to use +1, product pages will likely be the most important. As a result, track which products/services people are +1'ing. You may be able to do something with that information. Depending on how your customers are using +1, it may indicate a propensity for them to buy/use your products/services. So, if people click the +1 button and you're tracking it on your end and have their email addresses, you could send them triggered email messages. Emails based on selected interest are some of the most successful and underused emails available to you.