GUEST EDITOR'S FOREWORD
Determinism versus Nondeterminism for Linear Time RAMs with Memory Restrictions
Optimal Bounds for the Predecessor Problem and Related Problems
Finding Similar Regions in Many Sequences
Extracting all the Randomness and Reducing the Error in Trevisan's Extractors
A Constant-Factor Approximation Algorithm for the k-Median Problem
A Fully Dynamic Algorithm for Maintaining the Transitive Closure
Papers to Appear in Forthcoming Issues