Brent Sordyl's blog

While America threw on its eating pants and combed the Thursday circulars for deals, John Gruber spent Thanksgiving preparing to unveil his regular expression for finding URLs in arbitrary text.
(Link: Gruber’s URL Regular Expression Explained)

The eight regular expressions we’ll be going over today will allow you to match a(n): username, password, email, hex value (like #fff or #000), slug, URL, IP address, and an HTML tag. As the list goes down, the regular expressions get more and more confusing. The pictures for each regex in the beginning are easy to follow, but the last four are more easily understood by reading the explanation.
(Link: 8 Regular Expressions You Should Know)

RegexMagic makes creating regular expressions easier than ever. While other regex tools such as RegexBuddy merely make it easier to work with regular expressions, with RegexMagic you don’t have to deal with the regular expression syntax at all. RegexMagic generates complete regular expressions to your specifications.
(Link: RegexMagic: Regular Expression Generator)

Rubular is a Ruby-based regular expression editor. It’s a handy way to test regular expressions as you write them.
(Link: Rubular: a Ruby regular expression editor and tester)

Breaking It Down will be dedicated to enlightening both amateur and advanced programmers on selected topics in computer science and software engineering.
(Link: Breaking It Down: Regular Expressions – mobilitea.com/blog)

(Link: txt2re: headache relief for programmers :: regular expression generator)