This is a masterpost of tutorials, guides, and typography inspiration. Please note that there are many other tutorials out there, but I thought the following were the most interesting for graphic artists on tumblr:

• How to install fonts
• The anatomy of fonts
• What font should I use?
• General text tutorial
• Using and combining fonts
• Placing text in an icon
• A classy effect for text
• Ink stained text tutorial
• How to create 3D text
• More 3D text
• Your text is on fire
• Five simple steps to better typography
• Create a retro style typography graphic
• 10 common typography mistakes
• Amazing skinny fonts
• Typography inspiration
• More inspiration

(Source: sweettasteofbitter)