Your Sky: Planet Catalog (includes star charts and all browser friendly)
Stellarium Software (free download)
Heavens Above (all browser friendly and includes asteroid information)
Sky & Telescope - Interactive Sky Chart (requires java)
AstroViewer (interactive and downloadable)
Western Washington University - Planet Finder (requires java and some experience)
Light and Matter Planet Finder (multi-lingual, applet requires java)
McDonald Observatory - StarDate On-Line (two month general information)
David Chandler - Yearly Planet Locator Charts (pdf files)