so i found my old stash of baseball cards that my grandpa gave me a while back. theyre from 1987-1993. now he took almost all of the good ones (i didnt know at the time, seeing as how i was 6), but going through the 200 nobodys, i found 3 he overlooked that i think are of value:

Topps 1993 Derek Jeter Rookie Card
Front Row 1991 Ken Griffey Jr "Charter Member Collector's Club Edition"
Topps 1993 Barry Bonds

so if anybody knows of some free online price guides, or atleast knows if theyre valuable or not, gimme a holla. thx.