Three codes could be found hidden in the HTML source of the A clue for tomorrow? post on the Investigate Ingress blog.

[1] hvelwneecooimihgtnsgnyhyetotrj

[2] vtg11yvtrm764nd

[3] emifvgjavnagvpsbfvsbwj

Code #1

Observations

30 letters, no numbers this time but same old cipher

Code #2

Observations

Passcode format is there, go through your usual cipher routine.

Code #3

Observations

22 characters, hail caesar !