Citi has a new offer for its Citi Dividend World MasterCard. You can now earn $300 cash back after you spend $5000 within the first 3 months of opening your account. That’s up from the normal $100 signup bonus you normally see for this card. While it isn’t as generous as the Chase Sapphire Preferred bonus, it’s still a nice offer for a no annual fee credit card.

For those unfamiliar with the Citi Dividend, it’s similar to the Chase Freedom and Discover More cards in that it offers a flat 1% cash rebate on all purchases, with the opportunity to earn 5% on categories that rotate throughout the year. Currently, you’ll earn 5% cash back on airlines, hotels and car rentals through September 30, 2011.

Note: This $300 bonus offer has expired. To see the current offer for the Citi Dividend World MasterCard, see this link.