Effects of Link Arrangement on Search Efficiency

The subjects that used the 155-link Web pages had a significantly faster search time using a three-column link arrangement, while the two-column link arrangement had the slowest search time. Results for the 30-link Web pages did not show a significant difference in search times for any specific link arrangement.

Dietrich, Jon, Karen Gordon and Marc Wexler. SHORE (1997). Design>Web Design>User Centered Design>Usability