Crossword Puzzle Finds customers from social media, perhaps

Clue: Finds customers from social media, perhaps

Social media site that launched in 2003 (MYSPACE with 7 letters)
Social media nugget (TWEET with 5 letters)
Marginal figure in social media (ETAILER with 7 letters)
A grown woman, socially (DEB with 3 letters)
Finds in mines (ORES with 4 letters)
Social starter (ANTI with 4 letters)
Politician who championed Scandinavian social welfare (ALVAMYRDAL with 10 letters)
Hindu social division (CASTE with 5 letters)
Finds out about (HEARSOF with 7 letters)
A social sci. (ECON with 4 letters)