One of the features of our forum software are wiki posts. Any users who are TL2 Member or higher can edit a community wiki. Any post can be turned into a community wiki.
Here are a few ideas:
How to choose a species of pet Snake (or Lizard or Gecko, etc)? This would have a list of species and pros/cons of the temperament and husbandry requirements for each.
Per-species Care Sheets
Pretty much any how-to article
Which of these would you like to contribute to? What other ideas do you have?