YO3BN

https://www.yr.no/ - Weather Forecast
http://blitzortung.org - Network for Lightning and Thunderstorms in Real Time
http://www.meteoromania.ro/anm2/ - Administratia Nationala de Meteorologie
http://www.tgo.uit.no/ - Tromso Geophysical Observatory
http://www.sws.bom.gov.au/ - Australia Space Weather Services
https://www.ngdc.noaa.gov/stp/IONO/rt-iono/latest/latest.html - Mirrion Latest Ionograms
https://www.ngdc.noaa.gov/ - National Geophysical Data Center
http://www.swpc.noaa.gov/ - Space Weather Prediction Center
http://spaceweather.com/ - Space Weather
http://www.spacew.com/ - Space Weather
http://www.hamqsl.com/solar.html - Solar Data Banners and Widgets
http://www.n3kl.org - N3KL solar data index
http://www.heavens-above.com/ - Heavens Above
http://vlf.stanford.edu/ - Stanford VLF Group
http://www.vlf.it/ - IK1QFK, Renato Romero Home Page - Exploring ULF-ELF and VLF radio band

https://www.coursera.org - Take the world's best courses, online.
https://www.khanacademy.org - You can learn anything. For free. For everyone. Forever.

https://aprs.fi/ - APRS Map
http://findu.com - APRS Map
http://websdr.org/ - A WebSDR is a Software-Defined Radio receiver connected to the internet
http://www.voacap.com/ - HF Propagation Prediction and Ionospheric Communications Analysis
http://www.voacap.com/qth.html - QTH Locator - VOACAP.com
http://qthlocator.free.fr/ - Find your QTH locator (or your grid square) with GoogleMaps

http://www.giangrandi.ch - Iacopo Giangrandi HB9DUL's website
https://m0ukd.com/ - M0UKD's Blog
http://www.aa5tb.com/index.html - Web site of the Radio Station AA5TB
http://vk3ye.com/ - VK3YE dot com
https://yo4hhp.wordpress.com/ - YO4HHP's Blog
https://www.w8ji.com/ - W8JI's Blog
http://www.phonestack.com/farhan/ - Ashhar Farhan's Home Page
http://yo2lgx.blogspot.ro - YO2LGX's Blog
http://qsl.net/yo6pir - YO6PIR's website
http://yo3hjv.blogspot.ro - YO3HJV's blog
http://www.aholme.co.uk/ - Andrew Holme - Homemade GPS, etc.