The Importance Of Wireframes in Web Design and Tools to Create Wireframes

The Importance Of Wireframes In Web Design And 9 Tools To Create Wireframes

http://www.onextrapixel.com/2009/07/15/the-importance-of-wireframes-in-web-design-and-9-tools-to-create-wireframes/

10 Excellent Tools for Creating Web Design Wireframes

http://webdesignledger.com/tools/10-excellent-tools-for-creating-web-design-wireframes

Some Sketches Samples:

http://www.behance.net/Thimel

Highlight Tools:

gomockingbird

https://gomockingbird.com/

no time limit trial with page linking ( limited to 10 pages at max. )

balsamiq

http://builds.balsamiq.com/b/mockups-web-demo/

single page no day limit trial, with more advanced options