I have been able to use others referral links in here quite and bit and have been very happy. Here are the current offers that I can send along -- all are USA. PM me for any link.

Gold: 50,000 Membership Rewards® Points after they use their new Card to make $2,000 in purchases within the first 3 months of Card Membership. Plus, they can receive 20% back as a statement credit at US restaurants within the first three months of Card Membership, up to $100 back.

Platinum: Each friend can earn: 60,000 Membership Rewards® points after they use their new Platinum Card to make $5,000 in purchases within the first 3 months of Card Membership.

SPG Personal: Each friend can earn: 75,000 bonus points after they use their new Starwood Preferred Guest® Credit Card from American Express to make $3,000 in purchases within the first 3 months of Card Membership.

SkyMiles Platinum: 60,000 Bonus Miles after they use their new Platinum Delta SkyMiles® Credit Card to make $2,000 in purchases within the first 3 months of Card Membership.

SkyMiles Platinum BUSINESS: Each friend can earn: 35,000 bonus miles and 5,000 Medallion®Qualification Miles after they use their new Platinum Delta SkyMiles® Business Credit Card to make $1,000 in purchases within the first 3 months of Card Membership.