If you would like to use any of my material, please review the terms and conditions below.

Links: If you want to link to any of my material, there is no need to contact me for permission.

Direct use: for non-commercial use (school, club magazine etc) I only ask that I be given due credit for the material - e.g. "© Dave McDonald").

If you want to include an image or file directly on a web site, I ask that a link to my website be included (www.astroshack.net) as well as the credit by-line above.

If any material is to appear in print, I would appreciate a copy.