I generally don't get contracts per se. They call me when they have a need, we negotiate a price based on day rate vs space and usage. I submit an estimate with my terms attached, and they respond with a scanned or faxed signed estimate, or negotiate, and we work from there.
There are some magazines that have their own contracts that they ask photographers to sign, other just review the photographers policies and terms and negotiate from there. Some contracts are fine, some are far from it. We keep a sharpie handy to cross out the offending text which usually works
One thing we learn quick, is that we don't have to accept their contract as presented if it conflicts with our terms or policies. All contracts can, and many times should, be negotiated to be fair and acceptable for both parties.