If you are a registered user you can add four types of pages to guitar-list.com. Unregistered users can also add My-guitar-gear pages.
Brand pages: describe a brand name. To add a brand name go to http://www.guitar-list.com/node/add/content-brand
Guitar gear series pages: are for a family of products (they could be guitars, amplifiers, accessories etc.). To add a new gear series go to http://www.guitar-list.com/node/add/content-guitar-series
Guitar gear pages: are for a single product model (it could be a guitar, amplifier, accessory etc.). To add a new item of gear go to http://www.guitar-list.com/node/add/content-guitar
If you are adding any of the above three pages, check they don't already exist. If they do you can edit the existing pages.
My guitar gear: is for an individual example of a partcular model. To add one of these go to http://www.guitar-list.com/node/add/content-my-guitar-gear. You can add your own guitars etc here.
Please comment in the Forum if you have any ideas or suggestions to improve the way the site is organised.