Singular/Plural nouns.countable and uncountable

1. http://www.gingersoftware.com/content/grammar-rules/nouns/types-nouns/
2. http://www.gingersoftware.com/content/grammar-rules/nouns/countable-uncountable-nouns/
3. http://www.gingersoftware.com/content/grammar-rules/nouns/common-noun/
4. http://www.gingersoftware.com/content/grammar-rules/nouns/plural-nouns/
5. This is a very nice one. to the point.
6. http://www.edufind.com/english-grammar/plural-nouns/
7. http://www.talkenglish.com/grammar/singular-plural-nouns.aspx
8. http://www.onlinemathlearning.com/plural-nouns.html