Here used to be an e-mail contact form but I rarely check the dedicated Rukinet.com inbox anymore and I don’t want to give out my personal e-mail. Besides, e-mail is more or less dying anyway, and I’m way more accessible via Twitter and Google+. In any case, below is a list of places you can reach me out, listed in the order I’m likely to notice first.
Best of all, however, is the comment section below every single post I publish on the site. I always read these as soon as I get online and always reply if there is something to reply to.