Total online Thanksgiving Day sales will top the $1 billion mark this year for the first time ever, increasing year-over at least 23.4%, with most purchases made after 6 p.m., according to BestBlackFriday.com, a website providing information regarding holiday sale pricing, shopping tips and news. “We predict a 19.7% increase in online total sales on Black Friday as we expect the total purchasing figures to rise from $1.198 billion in 2013 to $1.434 billion in 2014,” the company said.