• Graffiti (wiki)
• Glossary of Graffiti (wiki)
• Graffiti Glossary (from The Popular History of Graffiti: From the Ancient World to the Present)
• Graffiti Glossary (from Graffiti Empire)
• Summary of Street and Graffiti Art (The Art Story)
• Deciphering the Meaning of Graffiti
• Uncover the hidden messages in graffiti: When the crime is the evidence, a web-based tool can help you investigate even after tagging or gang graffiti is removed or painted over
• ASU Center for Problem-Oriented Policing: Graffiti Guide
• Beginners Guide to Graffiti, Street & Mural Art 
• Everthing you wanted to know about tag graffiti in less than 5 minutes read
• Know Graffiti (Facebook page)
• Graffiti Ideas (Facebook page)

DOCUMENTARIES, FILMS

• Bomb It (2008)
• Crescent City Bombers (full movie)
• Tell Me Where I’m Not: NYC Graffiti Documentary
• Brighton Illegal Graffiti Documentary
• Getting Up (Full Graffiti Documentary)
• The Tragic Story of a Graffiti Legend
• Jaber the White Ninja Interview
• Downtown Pittsburgh SECRET LOCATION – Legal Graffiti & Trains – Color Park
• Graffiti Pittsburgh FTC

BOOKS & ARTICLES

• 20th Century Graffiti – The Rise of Graffiti Art
• Pittsburgh’s Graffiti Elite Confess Their Obsession With Illegal Art (Pittsburgh City Paper)
• Understanding Historic Preservation in a Dynamic Frame: The Graffiti Arts Program at the Carrie Blast Furnaces
• The Popular History of Graffiti: From the Ancient World to the Present
• The Graffiti of Grief: Violence, Death and Remembrance in Pittsburgh Gang Neighbourhoods
• Armed with Paint: Graffiti artists walk the fine line between criminals and folk heroes. This weekend, their work is showcased in the light of day
• It’s More Than Just Graffiti: The impact that graffiti has is larger than what people realize (Pittsburgh)

• The Pittsburgh Orbit: “Pittsburgh Orbit seeks to squint through the dusty windows, climb the overgrown hillsides, dip a toe in the muddy river, unfurl the platte maps, and poke a finger into the little corners of Pittsburgh (and environs) art, history, and culture that may not usually get their due.”
  • Tag – Graffiti
  • Off the Rails – An Orbit Awakening in Boxcar Tagging
  • Precious Metal – The Disappearing Legacy of Hard Rock
  • Un-Graffiti
  • Un-Graffiti – Parking (Part One)
  • The Chewing Gum Graffiti of Bigelow Blvd.
  • Serial Scrawlers: Who’s That Dude?
  • Look Both Ways: Trafficking in Warhol Eye Cones
• Encyclopedia of Graffiti (1974)

COLLECTIONS & EXHIBITS

• Pittsburgh Graffiti (Flickr)
• The Palms Resort’s Cinema Debuts with the Largest Graffiti Collection in Las Vegas
• Refuse Resist Revolt
• Pgh Graffiti
  
  

• Is graffiti art? Or vandalism? – Kelly Wall (TED-Ed)
• Why Many Feel Graffiti is Dead
• The Encyclopedia of World Problems & Human Potential: Graffiti
• 5 Issues that social street art addresses on graffiti walls around the world!
• Australian Institute of Criminology: Key issues in graffiti
• The Pseudo-Autonomy of Art: Essay by R.Cronk
• Is Graffiti Really An Element Of Hip-Hop? (book excerpt)
• Street Art: It’s Not Meant to be Permanent

• Graffiti beyond the streets (CBS Sunday Morning)
• Graffiti: Art or vandalism? (CBS Sunday Morning)
• Meet the 71-Year-Old “Graffiti Grandma” Scrubbing Away Hate
• Tired Of Painting Gray Squares Over Graffiti, South Side Resident Connects Taggers With Community (WESA)
• Baron Batch On Graffiti Charges: ‘Make Something Good Out Of It’ (WESA)
• Mook (graffiti artist, wiki)
• Tag! You’re It! Looking At The Work Of Pittsburgh’s Anti-Graffiti Squad (WESA)
• Graffiti Cleaning/Removal in Zelienople, Pennsylvania
• Graffiti Crackdown Reflects Social Tensions In Fractured East End (WESA)
• 2nd Ave Playground (Beaver Falls)

LOCAL VANDALISM REPORTS

• Arrest made in connection vandalism of veterans’ memorial at Beaver’s Clark Park
• Koppel Office Building Graffitied
• Zelinople Police Make Arrest in String of Burglaries [and graffiti]
• ‘Toilet trike man’ says council president assaulted him while discussing NSFW graffiti
• Swastika In School Prompts Racial Fight (Ambridge)