Almost Heaven Adventures
- Offers scuba and snorkeling classes and trips, as well as packages with accommodations.
- http://www.almostheavenadventures.com/

Caribbean Reef Villas
- One-bedroom, two-bath condos on the beach. Lists amenities, remodeling plans, and price.
- http://www.rivierareefresort.com/

Folsom and Associates
- Firm with US and Mexican lawyers offers real estate and immigration services.
- http://www.us-mexico-law.com

Dive Puerto Morelos
- Reef and cenote excursions, as well as PADI certification courses. Describes staff, equipment, and tour packages.
- http://www.divepuertomorelos.com

Wet Set Diving Adventures
- Scuba instruction, certification, and trips in the Caribbean, along with equipment sales.
- http://www.wetset.com/