Pathfinder Online

Pathfinder Online lets you type a callsign once and search more than 80 different sites for QSL information with just a few mouse clicks

Dave, AA6YQ, has updated 'Pathfinder Online' to access
callbooks for 74 DXCC countries: 3A, 4S, 4X, 5Z, 9A, 9M2, 9M6, A9, BV, BY, C3, CE9, CX, DL, DU, E7, EI, EP, ER, ES, EW, EY, F, FR, GU, HC, HL, HS, I, J7, JT, K, LA, LX, LY, LZ, OA, OD, OE, OH, OL, OM, ON, OZ, P2, P4, PY, R1F, R1M, S2, S5, S7, SM, SP, SU, SV, SV9, T7, TA, TF, TR, UA, UA0, UA2, VE, VK, VP9, VU, YL, YN, YO, Z3, ZL, and ZS.

In addition, striking the Enter key in the "Target Callsign" box invokes the most recent search.

Dave states, "The maintainers of these callbooks do occasionally re-host them or change their access mechanisms; if you notice a callbook being inaccessible for more than a week, please post a message here (DX-QSL or DX-IS mail reflectors), so I can see what's going on. Thanks..."

To use "Pathfinder Online", navigate to the following Web page and type a callsign into the "Target Callsign"
box, and click search buttons at:
http://www.dxlabsuite.com/pathfinder/WebClient

Source: OPDX