links for 2008-11-21

• 7 Anti-Aging Tips to Keep Your Brain Young: The No. 1 Thing You Can Do? | Anti-Aging | Reader's Digest
  (tags: life lifehacks)
• Twilio: Web Service API for Making and Receiving Phone Calls, building hosted IVR and PBX telephone applications
  (tags: web2.0 phone api xml voice)
• Shell Script to Backup Files Locally Using Rsync | LinDesk
  (tags: linux sysadmin backup script rsync)
• 30+ Eye-Opening Web Development Screencasts – NETTUTS
  (tags: web tutorial video development javascript tutorials webdesign rss screencast jquery)
• The Linux Kernel API
  (tags: reference programming kernel hacking documentation)
• GCC hacks in the Linux kernel
  (tags: programming gcc linux tutorial hacks optimization extensions compiler)
• Giz Explains: Every Video Format You Need to Know
  (tags: reference video media videos codec video_formats formats)