Trading Links for grassroots marketing

[Space Cowboy]

Hey all,

On the "History of Sorcerer as an Indie Game" (http://www.sorcerer-rpg.com/brochure.php/history.html), one thing that Ron Edwards suggests for would-be publishers is to trade links with other independent games.  For those would have done so, my questions are:

How successful was your effort? And

Did you have any guidelines in terms of who you would trade links with?

Many thanks in advance!