The Mahalo Top 7
- Wikipedia: Pen
- BIC: Pens and Markers
- Sanford Brands: Product Catalog
- Pentel writing instruments: Product Catalog
- Amazon.com: Pens
- eBay: Collectible Pens
- Video: Will Pens Blend?
Pen Information and Buying Guides
- eBay: Pen Buying Guide
- Levenger reading tools: How to Choose A Fountain Pen
- Howstuffworks: How Ballpoint Pens Work
- eHow: How to Remove Ballpoint Pen Ink Stains From Fabric
- eHow: How to Remove Marking Pen Ink Stains From Fabric
Pen Gadgetry
- Gizmodo: A Pen With the Paper
- Gizmodo: The Most Useful Pen Ever
- Gizmodo: USB Stylus Pen
- Gizmodo: The Inkless Metal Pen
- Engadget: Gamble on-the-go pens
Pen Types/Brands
Ballpoint
- Wikipedia: Ballpoint Pens
- Pilot: Ballpoint Pens
- Paper Mate: Ballpoint Pens
- Cross: Ballpoint Pens
Rollerball
- Wikipedia: Rollerball Pens
- Pilot: Rollerball Pens
- Uni-ball: Rollerball Pens
Gel
Permanent
- Wikipedia: Permanent Markers
- Sharpie: Permanent Markers
- Pilot: Permanent Markers
- Avery: Permanent Markers
Fountain
- Wikipedia: Fountain Pens
- Waterman: Fountain Pens
- Parker: Fountain Pens
- Pilot: Fountain Pens
- Cross: Fountain Pens
- Pelikan: Fountain Pens
Highlighter
- Wikipedia: Highlighters
- Sharpie Accent: Highlighters
- Avery: Highlighters
- Pilot: Highlighters
- Zebra: Highlighters
Dry Erase
- Expo: Dry Erase Markers
- Avery: Dry Erase Markers
Pen Retailers
- Staples: Writing and Correction
- Office Depot: Pens
- OfficeMax: Pens, Markers & Correction
Comparison Shopping
Pen Bargains
Pen Accessories
- OfficeMax: Pen Refills and Correction Supplies
- Official site: Liquid Paper
- Amazon.com: Pen and Pencil Cases
- PocketProtectors.com
Pen Fan Sites and Blogs
- PenHero.com: Fountain pen fan site
- The Fountain Pen Network
- Gizmodo: Pens
- Luxist: Pens