Before I even begin, let me just tell you that you have a very good piece of software there with great potential. I've been fiddling with it for the past month and I like what I see.
I myself am an electrical engineering student (Specialize in Power Electronics and RF), so as you can understand, there is a lot for me to benefit from Qucs.

Anyway, I couldn't help but notice that Qucs seriously lacks in documentation/reference.
I was wondering if there is anything I can do to help.
Also, I would like to help with coding a bit too if I can, but my programming skills are a bit rusty since I haven't done anything in years, so I'm a bit scared to try anything. So if there is anything small I could start on to get back on track I would be most grateful.

Well, that's about it, if you have any suggestions I'll be more than happy to help (plus I have some ideas for Qucs, as one that uses it, if you are willing to listen).

Hoping to hear from you soon,