Anyone found any special secrets they'd like to share?

So far this is all I've found: In new york, there's a huge minefield owned by the navy, restricted area. I haven't been able to go into it without blowing up, but there's an "unknown jumpgate" in the middle.

I've also found jumpholes:
Texas-> Colorado
New York -> Colorado

I'm also trying to explore the Hokkaido System, Kasari sector, but I'm having difficulty. The people in one of the bars have informed me there are 2 jumpholes...but I've only managed to find a construction site. One of the sites they said there was a jumphole to, Chogoku, is currently inaccessible through the jumpgate (still under construction). So where is the jump hole? It's uncharted territory as far as the universe map you're given says.

Oh yeah, if you feel like exploring yourself, be warned, the black area of the map (areas out of the cloud) are all radiation areas...