Gzip is the most popular and effective compression method. Most modern web browser supports and accepts compressed data transfer. By gziping response time can reduced by 60-70% as compare to normal web page. The end result is faster web site experience for both dial up (they’re not dead yet – I’ve dial up account for backup purpose) and boradband user. I’ve already written about speeding up Apache 2.x web access or downloads with mod_deflate.