from wired.com's furthermore section:
For I Have Sinned
"Please God, help me cleanse the computer of viruses and evil photographs which disturb and ruin my work, so that I shall cleanse myself (of sin)." Intone those words, written by an Israeli rabbi, and you shall be absolved of the sin of looking at Internet porn. Rabbi Shlomo Eliahu wrote the prayer after hearing many tales of remorse from Orthodox Jews worried that the lure of Internet sex was putting family relationships at risk. Eliahu urged Jews to recite the prayer whenever logging on to the Internet, so that they're spiritually covered whether they enter a porn site intentionally or, um, by accident.