The March/April, 1999 issue of Mercury Magazine is devoted to SETI and extraterrestrial life. Read the Table of Contents here:
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.
The Editorial also deals with the subject and is online at this URL:
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