Amateur (Ham) Radio Links

[Country Singer]

This thread is reserved for significant links for Amateur (Ham) Radio and will be "stickied." 

If you have relevant links of interest, post them here; the ones with the most broad-ranging usefulness will be added to the list in this post.

Organizations:
American Radio Relay League (The main organization representing ham operators in the U.S.): http://arrl.org
American Redoubt Radio Operators Network (Prepper oriented): http://amrron.com
Skywarn: http://skywarn.org
Hurricane Watch Net: http://hwn.org

General Info/Interest:
QRZ (Many resources, including practice tests): http://qrz.com
eHam (Has among other things, excellent equipment reviews): http://www.eham.net
Ham Study (license study guides and practice tests): www.hamstudy.org

Propagation Resources
NOAA Solar Weather: http://www.swpc.noaa.gov/
Solar Ham: http://www.solarham.net/
Radio Coverage Prediction: http://lrcov.crc.ca/main/

Frequency Guides/Lists
SHTF Prepper Radio Frequency Lists: https://radiofreeq.wordpress.com/2014/09/08/shtf-prepper-radio-frequency-lists/
Artscipub Repeater Database: http://www.artscipub.com/repeaters/
RepeaterBook: https://www.repeaterbook.com/index.php?state_id=none

Amateur Radio Satellites
AmSat Tracking: http://www.n2yo.com/satellites/?c=18

Equipment-Specific
Baofeng UV-5R: http://www.miklor.com/uv5r/

[chainsaw]

Solar Weather -  http://www.swpc.noaa.gov/
Know what sun spots and CMEs are on their way

Learn to use your Baofeng Radio - http://www.miklor.com/uv5r/

[elandil]

www.hamstudy.org is another great resource for practice tests and studying for your exams. Plus their site is Android/Mobile friendly.

[tlwagg]

Solar conditions - http://www.solarham.net/

I know this was posted on the old site but here it is again.
SHTF Prepper Radio Frequency Lists - https://radiofreeq.wordpress.com/2014/09/08/shtf-prepper-radio-frequency-lists/