As to what OS and what browsers to test, I let Analytics guide me on that. If I find that 25% a significant number of visitors are on a particular platform/browser, then I will test for that environment as best I can. "Significant" is where the subjectivity comes in. What is the threshold of users on a platform/browser that warrants testing? 5%, 20%? For that matter, lets not leave cell-phones out of the discussion. Right now about 5% of my sites visitors are on cell phones. -Meshack -----Original Message----- From: thelist-bounces at lists.evolt.org [mailto:thelist-bounces at lists.evolt.org] On Behalf Of Frederick Yocum Sent: Tuesday, January 26, 2010 11:56 AM To: thelist at lists.evolt.org Subject: Re: [thelist] Cross-OS testing for front-end work Aside from which browser, what is common practice for testing? How many use litmusapp, browsercam, Adobe BrowserLab, exc.? How many maintain their own test machines? How many rely on friends/customers to point out discrepancies in the pages?