Open Astronomy
- Galaxy Zoo – help classify SDSS galaxies
- Citizen Science Alliance – scientists, developers and educator working on internet-based science projects
- The Zooniverse – a wole lot of science zoos
- Citizen Sky -measure the light curve of peculiar binary ε Aurigae
- Great08 Challenge – image analysis competition for cosmic lensing
- Astrogrid – virtual observatory desktop suite
- e-VLBI - Live data form the e-VLBI network
- Astronomers’ Data Manifesto – by Ray Norris
- NASA ADS – our beloved literature search engine
Astronomy and social media
- CosmoCoffee – lively discussion forum for cosmology
- Astronomy posts on ResearchBlogging
- Paperscope – visualise your literature search
- Arxiv sorter – sort astro-ph on authors’ proximity to your favourite scientists
- Mendeley – manage your literature collections and share
- Astrophysics Jobs Rumour Mill – it’s social, kind of, open, collaborative and related to astronomy
Visualising astronomical data
- Google Sky – like Google Earth, for the sky
- WikiSky – interactive sky map generator
- Microsoft World Wide Telescope – explore the Universe in high resolution, make tours and link up with science data
- LookUp – astronomical object look-up tool
- SkyMap – sky mapping app for Android
- Astrotagging explained - new way to label your astronomy photos with their celestial subject and its location.
- PinpointWCS - simplifies retrieval of WCS data from FITS images for outreach astronomy images.
- Planetario Economico - cheap planetarium dome and projection system (PDF)
Outreach, education, multimedia etc
- Portal to the Universe – news, images and blogs on all things astronomy
- OverTwitter – get ISS alerts via twitter for your location
- Spacebuzz – what’s trending in astronomy?
- TwISSt – another ISS alerter for twitter
- Around the World in 80 telescopes – big ESO-led event during the International Year of Astronomy 2009
- Sixty Symbols - videos about the symbols of Physics and Astronomy
- This stuff is FAR! -The video to George Hrab’s theme song for the 365 Days of Astronomy



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