What are some alternatives?
When comparing Power Quotations and QuoteDark, you can also consider the following products
Brainyquote - Database of quotations by topic or author.
Quotemarks - Quotation application.
Wikiquote - A free quote database built collaboratively using Wiki software, a sister project to Wikipedia.
Quotefancy - Quotefancy is on a mission of turning inspiring quotes into beautiful wallpapers.
Curated Quotes - The best collections of quotations by topic.
SportsQuotes.info - Sports Quotes, Inspirational Quotes for Athletes and Teams