Just finished converting my 'alien skies' program to PHP, so will be putting it online soon. At the moment you have two sorts of choices: draw the sky as seen from a dropdown list of notable stars (Arcturus, Algol, Sirius, mu Arae etc) or input your own coordinates. At the moment, this generates an HTML table - obviously printable - of the stars in the alien sky, with their positions and magnitudes as seen from your chosen star. Next up is a graphical display, but that's not quite so simple to do in PHP as in VB6!
As I say, not strictly AAVSO, so I will understand if this post gets moved or trashed.