Word Counter - A simple, beautiful word and character counter
Google Doc Publisher - Make Google Docs good-looking in two clicks
WordCounter.net - Count words, sentences, paragraphs etc.
Content Editor 2.0 by Surfer - Content Editor is the most advanced content optimization tool that allows you to write and grade your work.
TapMeasure - Smart Augmented Reality Measurement
SEO Minion - Chrome extension & Firefox add-on to help you with SEO