Tom Giella (KN4LF) has posted his latest propagation forecast at KN4LF Daily LF/MF/HF Radio Propagation Outlook #2006-005. If you are really interested in HF props, then this is a must visit.
Three other prop websites worthy of mention:
William Hepburn's VHF/UHF Tropospheric Ducting Forecast A definite five star site for sure for the VHF/UHF/TV/FM DX enthuiast.
A place to keep an eye out for VHF/UHF openings in a variety of modes:
V-UHF QSO Real Time Maps
And last but not least, Monitoring Times Prop expert, Tomas Hood (NW7US) website at:
Propagation Resource Center :: NW7US :: HFRadio.org
73 and good hunting,
Larry