I had a guy who emailed me and asked me to write for an online magazine, but it was a publication of bad taste, so I turned it down. He also was a bit weird, and avoided the subject of job payment. My advice, be careful, and learn to tell the real ones from the chancers. I would say don't leave it to fate to discover you, go out there and write lots of hubs and articles, and get seen and read!
In traditional publishing, the slush pile is very big, where would-be writers end up. On the internet, the slush pile is truly infinite! (Unless you get published on LULU.COM)