Visibility One of the best SEM benefits is that it gives your brand immediate and increased visibility on search engines. In fact, it has been shown that search engine ads have a significant impact on brand vis (6) - download at 4shared. Visibility One of the best SEM benefits is that it gives your brand immediate and increased visibility on search engines. In fact, it has been shown that search engine ads have a significant impact on brand vis (6) is hosted at free file sharing service 4shared.