Abra, a crypto wallet and the really intriguing BIT10 index fund, is offering a great promotion.
Check out Abra and easily invest in 28 cryptocurrencies or BIT10, an index of the top cryptos. Get $25 in free bitcoin after your first Bank/Amex deposit, or 1.5% cash back when you exchange cryptos (T&C apply).
I recommend checking out BIT10 which provides an easy way to have a portfolio of the top cryptocurrencies.