Myriad Pro in action on haraldurthorleifsson.com

.header-1 { font-family: myriad-pro, MyriadPro, 'Myriad Pro', 'Open Sans', 'Helvetica Neue', Helvetica, sans-serif; font-size: 40px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 46px; text-transform: none; color: #7E7E7E; }
.content-1 { font-family: myriad-pro, MyriadPro, 'Myriad Pro', 'Open Sans', 'Helvetica Neue', Helvetica, sans-serif; font-size: 36px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 48px; text-transform: none; color: #7E7E7E; }
.content-2 { font-family: myriad-pro, MyriadPro, 'Myriad Pro', 'Open Sans', 'Helvetica Neue', Helvetica, sans-serif; font-size: 28px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 38px; text-transform: none; color: #7E7E7E; }
Myriad Pro is available from Fonts.com, Fontspring and Typekit.
Found by @mikesten on 7 Aug 2013.

Liked by:
@mikesten @TrishReda

Myriad Pro