It was MyLife that broke me. After spending hours studying FAQ pages, sending terse emails and making occasional phone calls in an earnest-if-naive attempt to take back some control of my personal information online, I had my first demoralizing moment. MyLife pulls together vast amounts of public data to create background reports and "reputation scores" on millions of people in the US, all available to those willing to pay for a monthly membership. On it, I found a sometimes inaccurate but eerie amount of personal information about, well, my life: my birthday and home city; my previous job title (though...