Hi! I am new to Twitter. I posted the following tweet: Latinos! Who's your favorite Hispanic singer? #MarcAnthony? #RickyMartin? #Shakira? Visit afr-research.com. You may win $25! To test if people could find my tweet, I searched the above-referenced hashtags but the search did not display my tweet. Why? FYI, I research Hispanic culture. Thank you. Dr. T.