THERE ISN'T AN EASY WAY AROUND THIS PART. MARKETING WILL BE YOUR BREAD AND BUTTER AS AN INDIE WRITER. BE CREATIVE, THINK AHEAD, AND TRY TO HAVE SEVERAL SERVICES MARKETING YOUR BOOK AT ONCE. THIS HAS ALWAYS BEEN THE SECRET TO MY SUCCESS. 
CLICK HERE FOR A GREAT MARKETING TOOL. GIVING YOU ACCESS TO OVER 100 DIFFERENT MARKETING COMPANIES. SOME ARE EVEN FREE.
PRO TIP: IF YOU HAVE A SERIES, TRY TO MARKET BOOK ONE ONLY. IN THEORY, IF THEY LIKE BOOK ONE, THEY WILL PURCHASE BOOK TWO. THIS IS EASIER ON YOUR POCKETS THAN MARKETING FOR ALL BOOKS IN THE SERIES. 

IF AUDIOBOOKS TICKLE YOUR FANCY THEN CLICK HERE. I FOUND A GOOD ARTICLE FROM KAREN COMMINS THAT HAS SOME GOOD LINKS NEAR THE END THAT REVOLVE AROUND AUDIOBOOK REVIEWS AND THE LIKE.