I go in skopje a lot of times during the year, i love it.
check out marakana, castro, mammas, midnight(former Process), colloseum, Hard rock (letni they called cuz it works only on summer time and lots of other that cant really think of right now
Welcome to VT.
Why not make some Skopje tips about the clubs you mention? Your post will soon get 'lost' on the travel forum (which is for questions, not tips); people are much more likely to find your Skopje pages and tips.