This site provided an article listing eleven highly promising nuclear fission and fusion technologies.
This site also provided the Sander Olson interview of Richard Nebel which gave insight into the IEC Bussard fusion project prospects.
Centauri Dreams looks at sending an interstellar probe with frozen embryos as a path to colonization.
21st Century Waves looks at antartic and other booming extreme tourism as a prelude to space tourism.
Check out the Carnival of Space 102 at the Space Writer for a lot more.