Can I add subdomain sites?
Yes. However, we give priority and higher importance to sites with a full domain name. In addition, if the site is on a unique IP address when compared to the other sites in the network, we will give even higher priority/importance. This is because typically for SEO purposes, the search engines look highly on sites like this. We want to create a network of only high quality sites. We do frequent automatic and manual checks of the sites in our network so we will know. If your site is spammy or of low quality, then we will remove it immediately.