Question: John, um, why is Gaia not a kind of Titan that's been statted with her purviews and other powers on your site? Danu is statted with her associated powers, but Gaia just kind of stares at you when you click on her.
Because Gaia is the personified earth, and as such will be in the Earth Titanrealm when we get around to writing that, not the Fertility realm of Ourea.
While the Scion books place Gaia in the realm of Terra (which is silly because Terra is just the Roman name for Gaia, you guys), that Titanrealm is a mess of a place. Where most other Titanrealms are specific, Terra tries to be the Titan of Life, meaning it encompasses a bunch of vaguely related concepts including reproduction, plants, earth, healing and so on. Gaia is a part of that giant conglomeration of ideas in the original writeup. But Terra is a clusterfuck that we took apart even before we made the rest of our Titanrealm writeups, breaking it down into Ourea as well as separate Earth and Disease/Healing realms. The original Scion line does have a Titanrealm of Earth in Crom Cruach, but that place is mythologically drunk and no one should use it.
Gaia is one of the classic Earth Mother figures, and will undoubtedly be part of our eventual Titanrealm of Earth along with others like Coatlicue, Prithvi, Ki, Jord, Klugyalmo, Geb and so on. We just haven't written that particular realm yet, so Gaia has no dedicated page to link to.
Someday, though! Cross your fingers!