Three codes were hidden in the HTML source of the REMOTE PARTICIPATION EXERCISES post on the Investigate Ingress blog.

[1] esubesuceiencigviegronssu

[2] utvyvvwuusxswrvuxzvyxrxsxvuuwquvxs

[3] n0fsvdjjt.lzft.k.lssv.o.yrt.dx

Code #1

Observations

25 letters but an overused cipher will help you

Spoiler

Make a 5×5 grid

Read going down from the upper right E

eigrubeigsuccessuninesevo

8rub8successu9e7o

These letters have a very specific range

Spoiler

Atbash

fgebeedffhchdiefcaebcichceffdjfech

Convert letters to numbers using a=0

5641443557273845204128272455395427

Atbash numbers

5469667553837265806982838655715683

Make pairs

54 69 66 75 53 83 72 65 80 69 82 83 86 55 71 56 83

Convert decimal to Ascii

6EBK5SHAPERSV7G8S

Count the characters to get a hint to the cipher. Be careful some are modifiers

Spoiler

If you count the letters and numbers you have 24 characters. Good count for Base64.

Change the case of the letters except the ones preceded by a dot

N0FSVDJJTlZFTklSSVoyRTdX

Convert Base64 to Ascii

7ART2INVENIRIZ2E7W