Here is a collection of useful, informative or interesting links related to astronomy.

Durham University Astronomical Society - my previous astronomical society
Aberdeen Astronomical Society - another previous astronomical society who put on events and observing nights
Heavens-Above - for iridium flares, the ISS and other satellite pass predictions
The Guardian's Skywatch Series - what's up this month?
Abrams Planetarium - Skywatcher's Diary - what's up this month? - latest images and unusual events
Sky and Telescope - latest news and reviews as well as observing guides
CloudyNight's Forum - discuss astronomy, telescopes and astrophotography
UK Weather World - Space Weather Forum - discuss astronomy with a UK bias - great for noctilucent clouds and other sky events
The Society for Popular Astronomy - the website of Britain's brightest Astronomical Society
Universe Today - space and astronomy News

Amateur Astronomers' Sites

Night Sky Hunter - Comet Hunter Martin McKenna's excellent website
Dave Pearson's Astronomy Website - comprehensive website and online observing logs from Dave in Lincolnshire
Backyard Astronomy for Amateur Astronomers
David Campbell's Astro Site - including equipment, catalogues and astroimaging galleries
Robert Geake's Astro Site
Tony Flander's Urban/Surburban Messier Project

Target Lists

The Urban Club List - Deep Sky Objects.
The Herschel 400
NGC/IC Observing List Generator
Search the IAAC Deep-Sky Observing Logs
Objects Viewable From Metro Phoenix For SAC Award

Telescopes: Purchasing

Sky-Watcher Telescopes
First Light Optics
Warehouse Express Online
Modern Astronomy
Telescope House

Telescopes: Maintenance

How To Collimate Your Newtonian Reflector
Exercise in Collimation

DIY Astronomy

Astroberry Server


Astrophotography by Jerry Lodriguss
Jim Thommes Webcam Astrophotography
The Mac Observatory
Scotch Mount -- Double Arm
The double-arm barn door tracker
A "Barn Door" Mount

Reference Stuff

Astronomy Resources Page
Small Wonders
Stars and Constellations
Latest Supernovae
ICC Institute for Computational Cosmology
European Space Organisation
The Solar and Heliospheric Observatory
Curious About Astronomy? Ask an Astronomer

Weather Forecasting
Met Office: Weather and climate - UK
sat24 - Cloud Infrared

Space Flight

On the Shoulders of Titans: A History of Project Gemini
Cassini-Huygens Home
The Mars Society: Mars Desert Research Station