MSSL solar group - Public Outreach Pages

Sunblock 99 - a multi-media tour of the Sun

The Solar Physics Group of Marshall Space Flight Center's (MSFC) Space Science Department

Windows to the Universe have a great collection of links and useful information

Sunspot cycle have everything there is to know (almost) about sunspots.

Spacewatch - Frequently asked questions about the Sun.

Space environment center write, among other things, about what effect the Sun has for our planet.

Never look at the Sun directly. Doing so will destroy the retinas of your eyes.