For the Small Business Week (June 16 - June 22, 2013), Chase temporarily increases signup bonuses for its Ink Plus credit card and Ink Bold charge card from 50,000 points to 60,000 points each. Since they are considered two different products, if you sign up and get approved for both, you may earn 120,000 points in total. Also for each card, the spending requirement to get 60,000 points has been reduced from $10,000 to $5,000 within 3 months! Note that two other Ink cards - Ink Cash and Ink Classic will have a temporary 5,000 points bump each.
Landing page for all four Ink Business Cards
Application page for Ink Plus 60,000 points
Application page for Ink Bold 60,000 points