A smattering of what you'll find on my presets, maybe this would be helpful if you live in the West Palm Beach-Ft. Lauderdale-Miami area of Florida (also note that stations/formats vary every 6-12 months):
88.5 - A high school radio station that plays a little bit of everything in scheduled blocks.
90.7 - National Public Radio mornings/evenings then Classical music/Jazz
91.3 - NPR all day long, jazz at night
93.1 - Dance music, some gems, some junk
94.9 - Modern rock (90's-today)
98.7 - Classic rock (60's-80's)
102.3 - Hip-Hop/R&B - some "old school" Electrorock
102.7 - Oldies (50's-70's, sorry if this offends anyone...they do play songs I vaguely remember when very young)
103.1 - Alternative Rock, some eclectic stuff that doesn't fall into any other category
103.5 - Hip-Hop
105.1 - R&B, disco, soul
105.9 - Classic and modern rock (60's-90's)
560 AM - Sports
610 AM - Talk radio; I'm not a big fan, but sometimes people/hosts say the stupidest things in the name of intelligence on this station.
1610 AM - Traffic reports in certain areas of the state