Here you find a mixed bag of links that I find useful and that you may find useful or interesting as well.
- My employers
- University of Leiden
- my current employer
- Collis B.V.
- here I worked as product developer and test consultant
- Max-Planck-Institut für Astronomie
- here I worked as postdoctoral research fellow
- Kapteyn Astronomical Institute
- my "Alma Mater"
- Astronomical links
- KiDS
- the Kilo Degree Survey
- Astronomy Picture of the Day
- every day a new picture and some information
- astro-ph
- astronomy preprints
- ADS
- literature archive
- NED
- Nasa Extragalactic Database
- Aladin
- interactive sky atlas at CDS
- astronomy tools
- sky calendar, airmass tables, etc.
- SDSS
- the Sloan Digital Sky Survey
- International Astronomy Meetings
- list of astronomical conferences, workshops and meetings
- AAS Job register
- jobs posted at the American Astronomical Society
- Manuals and guides
- Online tools
- Binary-Hexadecimal converter, hash generator and bitwise calculator
- SuperMongo Manuals
- a basic, but very useful plotting tool
- IRAF help pages
- help for the IRAF data reduction package
- IDL Astronomy User's Library
- repository of astronomy-related IDL scripts and procedures
- FITSIO Home Page
- manuals and documentation for the CFITSIO library
- Integrator
- on-line integration solver from Wolfram
- Science World
- extensive math and science resource from Wolfram
- The GIMP Homepage
- the GNU Image Manipulation Program
- HTML Goodies
- useful for beginners and the more advanced
- News, weather and maps
- NOS Teletekst
- videotext service from NOS (dutch)
- NU.nl
- dutch news website
- BBC News
- news website of the BBC
- Weeronline
- weather situation and forecasts for the Netherlands
- Wetteronline
- weather situation and forecasts for Germany
- The Weather Underground
- weather reports and forecasts all over the world
- Google maps
- maps and satellite images from Google
- Miscellaneous
- Jamendo
- check out Frithjof Brauers cd's on free music website Jamendo
- Wikipedia
- the on-line encyclopedia
- IMDB
- Internet Movie DataBase, everything about movies
- Telefoongids
- phone guide for all of the Netherlands
- Telefonbuch
- phone guide for all of Germany
- Merriam-Webster
- English-language dictionary and thesaurus
- Allwords
- on-line translating dictionaries
- IsItFridayYet.org
- ...is it?