The March/April, 1999 issue of Mercury Magazine is devoted to SETI and extraterrestrial life. Read the Table of Contents here:
http://www.aspsky.org/mercury/mercury/9902/contents.html
One article is online - "The View from a Distant Star: Challenges of Interstellar MESSAGE-MAKING", by Douglas A. Vakoch
In the absence of knowledge of physical and cultural clues, communication between two species can be almost impossible. Almost.
http://www.aspsky.org/mercury/mercury/9902/vakoch.html
The Editorial also deals with the subject and is online at this URL:
http://www.aspsky.org/mercury/mercury/9902/edit.html
The January/February, 1999 issue of Mercury has this online article:
"More Than Just a Planet, It's a Meal"
Can a star swallow a planet? The extrasolar planets discovered over the past two years display an odd range of characteristics - from their masses to the size and shape of their orbits. And they just may offer us clues to stellar diets. By Eric Sandquist of Northwestern University
http://www.aspsky.org/mercury/mercury/9901/sandquist.html
Larry