Welcome! Definitely take some time to read the Stickies, especially the ones in the Newbie section. You will find tons of information, including a detailed explanation of CG.
In short, CG is about learning how to treat your hair gently. Basic guidelines are avoiding sulfate cleansers, avoiding silicones in any hair products (some people consider water-soluble silicones acceptable, some people do not), avoiding drying alcohols (not all alcohols are drying- some are wonderful for moisturizing), and avoiding direct heat styling (i.e. diffusing hair on a low to medium heat setting is fine, using a flat iron or using a blow dryer without a diffuser directly on your hair on high heat is not). Everything else comes down to personal preference.
3a/f/iii Modified CG since 11/5/11 CLEANSE: VO5 Vanilla Mint Tea Clarifying, DevaCare No-Poo, CHS Treatment Shampoo RO: DevaCare One Condition, SS Caitlin's Conditioner, Mop Top Daily Conditioner LI: SS Repairing Protein Treatment, CHS Silk Leave-In STYLE: Re:Coil, Curl Keeper, Deva Ultra Defining Gel, Curls Rock Amplifier and Strong Hold Mousse, Sweet Curls Elixirs Okra Gel and Hard Hold Gel, SS Curl Enhancing Jelly and Firm Hold Gel