Your site may look great on screen, but have you thought about what it looks like when it’s printed or what it looks like when a mobile device accesses it? Take a moment and print a page from your site – you might be surprised with what comes out of the printer.

Search engine spiders don’t like Javascript – in fact they just won’t execute it. That’s a problem for people who have their content served by fancy Web 2.0 AJAX-based sites – the search engine spiders just can’t see the content, so it doesn’t get indexed. This session went over what your options are to avoid that problem.

If you use negative z-index values in your CSS it will work properly in Internet Explorer and Safari, but you’ll have problems in Firefox.