Wow, I have an AMEX but didn't know about it.

For anyone else curious: https://www.shoprunner.com/americanexpress/

EDIT: Apparently it's not all American Express cards. My Fidelity AMEX doesn't qualify.

Blue Cash Preferred qualifies. Man, I'm still discovering little perks to AMEX like this.

Any other notable perks?

The one that always jumps to mind is, on "Small business Saturday", if you register beforehand:

- visit a small business on their qualifying list, which is quite long

- Spend $10 or more on your AMEX

- Get a $10 statement credit

I don't know how "notable" that one is, but I always liked it and not everyone knows about it

From the FAQ: "Can I still register my Card for the American Express $10 Card Member Offer for Small Business Saturday?"

"Unfortunately, the enrollment period for the offer has ended."

Looks like this the enrollment was only available Nov 24-30.

Yes, you do have to enroll every year, but it is easy.

Generally AMEX is known for better customer service, but YMMV. AMEX is often seen as a good choice for people looking to build credit because they're often willing to give out a 3x credit limit increase (without a hard credit pull) first 90 days after getting a card, and then every 6 months after that (up to a point and assuming you're using the account and in good standing).

Purchase Protection.

This saved me recently. Broke my new Nexus 5's screen in a matter of a week. Sent to LG for repair and they repaired it for 150$.

I filed a purchase protection claim for this 150$ with AmEx and they refunded me the cost in a week. Just emailed them the claim form and receipts. Can't recommend this enough.

Yep, I didn't know either until the holiday season was almost over. I could've ShopRunner'd so many things!

Costco Amex card works.

Also if you have AMEX, watchout for their offers tab. During December they had $25 off $50 & $75 for Newegg, Amazon & Walmart. No codes, no referral, just use your Amex card at checkout and it automatically deducts from your statement. It also means you can use Ebates & other coupons on top of it.

Has Shoprunner actually worked well for you?

I've been unimpressed. The last few times I've bought from NewEgg or TigerDirect I tried to use it but literally nothing on my shopping list was marked as shoprunner-eligible.

I signed-up because of the free-with-amex thing but I don't see myself using it all that much.

I just did a $2100 order from Newegg, of which $2050 of it qualified (a CPU didn't).

And newegg was part of shoprunner, it would suck if they get rid of shoprunner coz of this

Wow, I didn't know about this. I just signed up with my Amex card.

For those surprised by free shoprunner with amex, check slickdeals once in a while to find out things like this.