Computer:

http://majorgeeks.com

http://www.tigerdirect.com

http://www.pcadvisor.co.uk/forums

http://drivers.softpedia.com/get/firmware

Amateur Radio

http://www.arrl.org

http://www.qth.com

http://www.qrz.com

http://www.ac6v.com

http://www.fistsna.org

http://www.heilsound.com

http://bandconditions.com

http://www.hamradio.com

http://www.transeltech.com

http://www.secondhandradio.com

http://store.rlham.com/shop/catalog

http://www.hamanuals.com/miscmans.html

http://www.vibroplex.com/date_your_vibroplex.html

(find out what year your vibroplex keyer was manufactured)

http://www.mapdevelopers.com/elevation_calculator.php

Weather:

http://weather.gov

https://weather.com

http://www.intellicast.com

http://www.accuweather.com

http://www.wunderground.com

http://www.tornadoalleylive.com

Electronics:

http://www.rfparts.com

http://www.mouser.com

http://www.thetubeshop.com

http://www.connectorzone.com

http://www.parts-express.com

http://www.kenselectronics.com

http://www.debcoelectronics.com

http://www.ramseyelectronics.com

Online Scanners:

http://www.radioreference.com

https://www.broadcastify.com/