Top 10 PHP Regex Cheat Sheet
PHP regular expressions can be almost as indecipherable as the United States tax code. Rather than reaching for a manual every time you need to perform a particularly complex parsing task, just consult this handy Top 10 PHP Regex Cheat Sheet. It provides all the information you need to implement some basic regular expression functionality into your PHP pages, including regexes for validating usernames, credit card numbers, email addresses, phone numbers and more.
JDK 7 Reference Card
Get an at-a-glance look at all the information you need to prepare for and use the Java SE 7 Platform Specification (aka Java 7 or JDK 7). The JDK 7 Reference Card is a comprehensive reference tool for all the newly included, enhanced and changed JSRs that make up the Java 7 spec -- everything from NIO.2 to Project Coin -- as well as tidbits like the fate of closures.
C# Cheat Sheet
The C# Cheat Sheet is your quick reference to details on the C# programming language and more. In this concise document, you have references for C# operators, types, formats, objects, keywords, pre-processing directives, casting, LINQ, character conversions, and more. There is even a table for regular expressions.
Defend Your Business from Evolving Malware Threats
Malware continues to play a significant and growing role in the theft of sensitive data from small businesses as well as large enterprises. Is your organization's information security plan adequate to address the threat posed by the latest malware? Download this exclusive eBook from the editors of eSecurity Planet to learn how to protect your organization against viruses, worms, trojans, and other forms of malware.
5 Data Storage Trends to Watch
The way that organizations store and secure their data is undergoing a major shift, from physical servers with networked storage to virtualized servers and clouds. Download this eBook to see how technologies like deduplication, virtualization, and cloud computing are changing the storage game and affect the best practices for data security, backup, recovery, and more.
Servers And Networking 
