30-day free trial of Illustrator:

• https://creative.adobe.com/products/illustrator

Illustrator tutorial links:

• Adobe TV - Illustrator - http://tv.adobe.com/product/illustrator/
• Adobe Design Center - Video Workshop - http://www.adobe.com/designcenter/video_workshop/
• Illustrator & Vector Tutorials - http://vectortuts.com/
• Adobe Illustrator Fundamentals: Drawing with Vectors - http://www.graphics.com/modules.php?name=Sections&op=viewarticle&artid=797
• Adobe Illustrator Tutorials @ Tutorialized - http://www.tutorialized.com/tutorials/Illustrator/1
• Illustrator Tutorials @ ndesign studios - http://www.ndesign-studio.com/resources/tutorials/
• Best of Illustrator Tutorials - http://www.smashingmagazine.com/2008/02/05/illustrator-tutorials-best-of/
• Vector graphics tutorial - http://www.sitepoint.com/article/graphics-illustrator-freehand