Websites on Rhyming:
Alcor Rhyming Dictionaries
Online rhyming dictionaries in Spanish, French, Italian, Portuguese, Romanian, and German.
AnalogX - Rhyme
[Windows] A rhyming program. Knows over 100,000 words. It can rhyme words forward, backwards, and with matching syllable counts.
Lexical FreeNet
Allows you to search for rhymes and relationships between words and concepts.
Semantic Rhyming Dictionary
Rhyming dictionary and thesaurus: rhymes, near rhymes, homophones synonyms, and semantic siblings of English words.
Word Central
Student dictionary and rhyming dictionary online at Merriam-Webster's website. Daily Buzzword by subscription.
WriteExpress Online Rhyming Dictionary
Online dictionary for poetry and songwriting.