Registered users may choose not to receive text messages from us by not providing us their cell phone number. We also may use or combine information that we collect from the Services with information provided by third parties, including demographic information and other attributes, and organizational affiliations. We also collect information about your interactions with our email messages, such as whether the messages were opened and the links clicked in those emails. Most web browsers automatically accept cookies but, if you prefer, you can usually modify your browser setting to disable or reject cookies. It is optional for you to engage in such activity; however, if you choose to do so, we may not be able to permit you to participate in the activity unless certain pieces of information are provided. Our partners may use the information collected to serve you with targeted advertising, both through our Services and other websites, email, online services or mobile applications. Please allow up to ten 10 business days for changes to your email preferences to take effect.