Here's more than 40 places to send your demo...
http://www.indiepages.com/linkszines.html
Fee: $0, no charge.
If you go to the contact page on most of these sites you'll find at least a postal address, maybe even a name. You can email them before hand to ask if it's OK to send them your demo, in return you might get the name of an individual. You can mark your envelope for their personal attention.
OK, these are for the genre indie-rock, but there are hundrends of such pages on the net for all genres, the difficult bit is keeping track of where you sent the demos so you don't duplicate your effort.
Like they said, all the information you need is out there for free. What you WILL need, is time to gather it all.