I've managed to accumulate over 600 links for solar-related data, reports, press releases, papers, etc. This also includes magnetosphere-related stuff and other outer-space goodies. At this point, it's almost unmanageable, haha. Anyway, I occasionally see a link that I don't remember anything about so I click on it to what was about.

Anyway, back on December 28, 2011 I bookmarked this site for future reference. It's called CEDAR-WIKI and I believe it may be the "Holy Grail" portal for much of the mythical "hidden data". Some of the data links require you to register (which I haven't done yet) and a lot of stuff here is over my head; but someone out in GLP-land may have the time and wherewithal to navigate the belly of this beast, so I'm putting it out there.

CEDAR-Wiki Main Page: [link to cedarweb.hao.ucar.edu]

First off, CEDAR stands for Coupling, Energetics and Dynamics of Atmospheric Regions and is part of the GLOBAL CHANGE Program of the National Science Foundation.

This web-portal seems to have access to data sites known only to "insiders" of the Scientific/University/Military-Industrial complex. Here's a list of their ground-based instruments:

[link to cedarweb.hao.ucar.edu]

And data services instruments:

[link to cedarweb.hao.ucar.edu]

I know...it's mind boggling. Of general interest to the viewers of this thread, I found a link here for the MIT Space Plasma Group (no, it's not a punk rock band):

[link to web.mit.edu]

And I never knew that MIT has up-to-date data on the solar wind (!) from the VOYAGER space probes (last update Sept. 9, 2012!):

[link to web.mit.edu]

Let me know what kind of data goodies you all can find here--it looks like a bottomless pit from here, LOL.