Billed as the "Home of Online Marine Trip Planning" this is an interesting site with various boating, scuba and even user uploaded videos and photos. They have lots of navigation "stuff" with interactive charts and other resources that are worth a look. Its not a full navigation suite, but for some route planning and dreaming, it might be just the thing.
Mad Mariner™ has an ongoing series on navigation software... in depth reviews including PC, Mac and even freeware software. So far I've been quite impressed. This resource page lumps it all in one starting point. read more »
Another PC based navigation software product billed as being "for boaters who don't think like a computer". Might be worth a look... comes in a range of "levels", all for reasonable prices.
An interesting little article discussing how certain solar flares can swamp the GPS signal. Yet another reason to make sure you have a backup and don't just rely on our tech toys.
As of 2008-08-22 11:00, this link is reporting errors.
Maptech is offering a new web page to find and download free charts. There are other sources for these online also, but this may be useful to you, and the price is right :-)