If you are trying for shore diving sites in the Tampa/Sarasota area, you'll be lucky to get 10 total!
The ones that I know about:
Hudson Grotto, Hudson, FL: Fresh water, tannic, 5-8ft vis, $15. This is an old sink hole, depths to 110+. You need lights for this dive, and there's a hydrogen sulfide layer at ~ 70' which makes it very dark. Lines at 30' & 60' around perimeter of sink. Takes 12-15 minutes to make a leisurely circuit aroung the perimeter.
Spanish Rocks, Anna Maria Island: Salt water. Vis 0-20', free. Shore dive, depths to ~ 20'. Nice small rock ledge/reef, fair amount of life.
Sugar Barge (AKA The Regina), Anna Maria Island: Salt water. Vis 0-20', free. Shore dive, depths to ~20'. Bouy markes spot ~ 50- 100 yds off shore. A triangle shaped chunk of metal the size of a Volkswagon. You can actually snorkel this as well, due to shallow depths, minimal things to see.
South End of Skyway Bridge, East Side. Salt Water. Vis 0-20', free. Depths to ~20'. Park at rest area on south end, diving area around breakwater.
Fred Howard Park, Tarpon Springs. Salt water siphon hole/cave dive, Vis 0-20', free. Depths to 60+, Advanced dive due to siphon and cave and vis. Couple hundred yards offshore from 2nd bridge on Causeway leading to beach. Causeway currently closed for repairs, makes it a much longer swim/wade.