i love new technology, so when i heard that american express and twitter were teaming up, i was pretty interested. turns out you just sync your american express card securely to your twitter account, tweet specific hashtags, and you'll get offers on things you love. this totally changes the way i think about membership. saving money on the things you want. to me, that's the membership effect. nice boots! on thursday president obama will close the democratic national convention in charlotte. here's the dnc chair, los angeles mayor antonio villaraigosa earlier this week. >> the whole sort of culmination of the whole week is at bank of america stadium. yeah, democrats and i know a