Explorer alternatives

From an article in the Chronicle of Higher Education:

Worried about persistent security flaws in Microsoft's Internet Explorer, officials at the Pennsylvania State University system have taken the unusual step of recommending that students, professors, and staff members stop using the popular Web browser.

"The threats are real, and alternatives exist," the university said in an announcement posted on its Web site this week.

The most obvious alternatives are Firefox (free) and Opera (free with a banner ad, $39 without, and worth it!). Opera is my favorite browser. Both browsers are much faster and much more secure than Internet Explorer. And both allow tabbed browsing, with multiple pages within one program window, another advantage over Internet Explorer.