The SDAC offers the latest pictures of the sun as well as a large number of links to other solar resources. We recommend taking a look at their eclipse page which has a great set of links to many other eclipse sites.
Find out what’s new with the SOHO spacecraft and mission. SOHO has revolutionized our understanding of the sun and our ability to predict our local space weather. This site also features the very latest SOHO images, many of which can be found on the SDAC site as well.
The STDH is the place to go for recent alerts and warnings concerning solar flares and the effect that they might have on earth. The site also has updates on daily solar and auroral activity as well as links to many other space weather and solar observing sites. A nice site, check it out.
The YPOP page is a great resource for learning more about our sun. Start in the Yohkoh Theatre Lobby to see what the site has to offer. Also, check out Yohkoh’s latest images of the sun.