In the same way that gateway pages capture visits from Google, gateway domains get always well positioned. If you look under any popular keyword, you will see those keywords in the domain name. Also, the domain names with pure keywords in them are scarce and valuable. The additional advantage of gateway domains is the fact that each domain is allowed only 2 entries in SE´s result pages (SERP). Thus, even if you have a SE saturation (number of pages of a given domain that are indexed in the SE) of say 100, you will have only 2 of them in the results. More domains let you have more places in the first SERPs, pushing your competence back in the results. GGG has a unique feature that lets you host gateway pages across as many domains as you have. They are all interlinked and point to the target site. This also helps avoid the abuse label.