[Update 10/14/14] Since the landing page and the application pages in the original post have expired, we are posting a new set of links that are working as of today:

Landing page for both offers
Application page for personal Platinum Select / AAdvantage
Application page for CitiBusiness / AAdvantage

[Original Post] We covered similar offers before and links are still working.  The only reason why we would like to update the post is that CitiBusiness AAdvantage's offer has been increased from 40,000 miles to 50,000 miles.  When you open the personal Platinum Select/ AAdvantage or CitiBusiness / AAdvantage and spend $3,000 within 3 months, you will be receiving 50,000 miles.  As always, the 1st year annual fee is waived ($95 saving).  If you open both cards, you can get 100,000 miles.

Landing page for both offers (expired)
Application page for personal Platinum Select / AAdvantage (expired)
Application page for CitiBusiness / AAdvantage (expired)

Citi Executive AAdvantage Card's 100,000 miles offer was probably the best signup offer we have seen so far this year.  It ran about half a year - we are surprised it actually lasted that long.  During the same time there was another offer for 75,000 miles, which obviously was not as great as the 100K and mostly got overlooked.  However, since the demise of the 100K offer the 75K offer is the best currently available.  You need to spend $7,500 within 3 months to get 75,000 miles; and you also receive $100 statement credit, which essentially cut the first year annual fee to be $350.  The link in our old post actually expired and we are updating the links here.

Landing page for the 75K offer
Application page for the 75K offer

Last month, Chase temporarily increased the signup bonus of both Ink Business Cards (Ink Plus and Ink Bold) from 50,000 points to 60,000 points, with the normal 1st year annual fee waiver.  Those links expired at the end of June and the Chase website now has the regular 50K offers with 1st year free.

It has been reported that Chase is running a new promotion for Ink Plus only at their branches - you will receive 70,000 Ultimate Rewards points, which can be transferred to United, Southwest, British Airways, Korean Air, Hyatt, etc., after you spend $5,000 within 3 months of card opening.  However, unlike the regular offer, the 1st year annual fee ($95) is not waived.  In our opinion, this is the best offer Chase has ever given for the Ink Business Card and it is worth a trip to your local branch.  Interestingly, the offer for Ink Bold at branch is exactly the same as on Chase website - 50,000 points.

For those who signed up Ink Plus in June for the 60,000 points, you can even try to send a secure message to Chase asking them to match the 70,000 points offer.  You can say something like you went into a local branch and saw the promotion material and wonder if it is possible to match to the better deal.  Some people have reported they succeeded in doing so while keeping the 1st year free.  Sweet deal if you can do that.  Of course it is totally up to Chase representatives, but it is worth a shot.

Since the 60K offers for Ink Bold and Ink Plus Business Cards have expired, we are posing the regular 50K offers here: you need to spend $5,000 within 3 months to receive 50,000 Ultimate Rewards points which can be transferred to partners such as United, Southwest, British, Korean, Hyatt, etc.  As always the $95 annual fee is waived for the first year.  Since Ink Bold and Ink Plus are consider two different products, you can actually get both offers.  Chase may bring back the 60K offers in the future, but there is no guarantee.  So it is up to you if you want to jump on or wait.

Landing page for Ink Bold 50K
Landing page for Ink Plus 50K