Here are three of the week's top pieces of financial advice, gathered from around the web: Social media can make you poorerSites like Facebook and Instagram are sending young people's "bank balances and moods plummeting," said Catey Hill at Moneyish. More than 50 percent of millennials admit to spending "money on something they hadn't planned to" because of social media, according to a new survey by Allianz Life, compared with 28 percent of Gen Xers and only 7 percent of baby boomers.