@minutephysics gives us a list of some of the best stuff you may check out in the Internet. Almost all of them have been featured on Science is Beauty in some time.

The BEST Science Online (Henry’s List)

Big Red Button - http://inception.davepedu.com
xkcd - http://xkcd.com/
xkcd what if? - http://what-if.xkcd.com/
Saturday Morning Breakfast Cereal - http://www.smbc-comics.com/
Empirical Zeal - http://www.empiricalzeal.com/
Sean Carroll - http://www.preposterousuniverse.com/
Terry Tao - http://terrytao.wordpress.com/
It’s Okay To Be Smart - http://www.itsokaytobesmart.com/
I ¶#@*ing Love Science - https://www.facebook.com/IFeakingLoveScience
NASA Astronomy Picture of the Day - http://apod.nasa.gov/apod/astropix.html
Radiolab - http://www.radiolab.org/2012/dec/17/snowflakes/
HyperPhysics - http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html
The Scale of the Universe - http://htwins.net/scale2/
The Character of Physical Law - http://research.microsoft.com/apps/tools/tuva/
Fake Science - http://fakescience.tumblr.com/

Youtube Channels

Veritasium - http://www.youtube.com/user/1veritasium
Sixty Symbols - http://www.sixtysymbols.com/
Periodic Videos - http://www.periodicvideos.com/
Crash Course - http://www.youtube.com/user/crashcourse
The Brain Scoop - http://www.youtube.com/thebrainscoop
Smarter Every Day - http://www.youtube.com/destinws2
Vi Hart - http://www.youtube.com/vihart
George Hart - https://www.youtube.com/channel/UCTl0dASnxto6j2wlVs5Bs2Q
Numberphile - http://www.numberphile.com/
Vsauce - http://www.youtube.com/user/Vsauce
TED-Ed - http://www.youtube.com/teded
MinuteEarth - http://www.youtube.com/user/minuteearth