I acknowledge their referral ASAP then again after closing with movie tickets and a personal card.

I respond right away either by phone or email. Referrals are what keep all of us in business. 

I like the personal call approach and to do it right away, waiting can lead to forgetting and that can lead to no more referrals. 

Absolutely thank them.  Even if the prospect is weak and there's no realistic chance they'll ever buy, show gratitude.

That someone thought enough of you to send a prospect to you deserves a big thank you.

I got one a couple of days ago while on vacation from another Rainer, and picked up the phone and gave her a call to say thanks!

I send an email and after closing, if they're a Realtor, they would obviously get a referral fee - the best of gifts

Some of each.

Not only do I immediately mail them a personal note to thank them, I send them a cake from Penn Street Bakery thanking them again for their "sweet" referral. Then when the transaction is completed, I write again. You can't ever say thank you enough.

I immediately thank them

Good morning Debbie. I've had folks say they referred someone, but no other information, so I ask if is OK that I contact them, if it is, I get the contact information.

Debbie - Of course I would do something to make sure that person knows how thankful I am that they referred someone to me.

I will also contact them so they are aware that their friend is being well cared for by me.

Debbie Reynolds at least that much we should do. Thank You note with gift card (amount not so significant).

generally speaking I email.  I also email updates, when we're pending, when we expect to close, if we have delays and when I mail their check.

I will take the time to reach out with a thank you of some sort...email, card, phone call. 

Immediately thank them by phone, then a card and sometimes dinner...

They would get a call, followed up by a hand written note and a gift card.

I thank them as soon as I connect with the referred party.  And, do my best to keep them informed of the relationship.

When  past client or a friend has referred someone to me I always call and thank them.

I agree with Susan Emo .  A

I definitely make a call to say thank you. During this call I also find out a bunch more about the client prospect, what led up to the referral. Sometimes I give a bottle of wine at an opportune time, not necessarily connected with the referral itself. Why? In one neighborhood, I had one referrer talk to another one who had not yet gotten a bottle of wine--or at least who thought they should have gotten one too. Got weird, so now I give wine or other gift like for a birthday or other festivity.

I will typically send an email. If I actually obtain a real transaction out of it, I might send a bottle of wine or other small 'thank you' gift.

Call and email.

Absolutely. Referrals are the life blood of my business.  I also found out not many people actually send thank you cards or call or email to say thanks for the referral. Sad that people get referrals and don't return the favor.

I absolutely do send an e-mail however, I haven't "received" any e-mails.

Yes indeed.  That is how I stay in business..

Always. I also try to something extra, be it meet them for a meal, uy them something(like a B&N gift card for a client who I know loves to read) or at this time of the year, I'll stop in and drop off something fresh picked from my garden.

I usually do it right away with a small "thanks" in the form of an email or phonecall. However, if the transaction goes through I do somethinga bit more elaborate.

I always call them and follow up with a card and a gift card. I like John McCormack 's idea of moving tickets..we have a wonderful dine in Movie Eatery..going to give that on a referral I received which is closing the end of September.

I use various methods but thank them ASAP. Otherwise it can get too low on my ever-growing To Do list. 

I give them a call or email right away. If they are close with the refferal or its their family member I'll keep them updated throughout the transaction.