You should know the drill by now...

GAM: https://www.google.com/accounts/Login?service=gam
Fiji: https://www.google.com/accounts/Login?service=fiji

Has anyone any ideas what they could be?

More here:
http://ruscoe.net/blog/2006/12/gam-and-fiji-new-google-services.asp

Google Alerts Manager ?

Hmm, possibly. Although Google Alerts is already knows as "alerts".

i like the fact that Google's service login for "Figi" says "Sign in to New Service with your" =D

Google Address Manager? (I wish!)
Google Access Manager?
Google Application ....something?
Google Adwords/ Analytics/ Audio/ Answer/ Assessment ...something?
Google ..something... Maps/ Management/ Media/ Medical/ Meetings/ Movies?

what about the other one?
maybe its got something to do with Froogle?

On the source for the FIJI page, the input spans are all named "gaia le *". I searched up on it – the Gaia Hypothesis is that Earth is one single functioning organism...Basically, we could be looking at another one of those integration attempts they spoke about a couple of months ago. Hopefully. Gaia is the name of the Greek goddess of the Earth and usually represents the environment. Alternative suggestions:
*Google Earth related product
*Some Green Google kind of thing

Eytan, that Login page is the same for all services.

AFAIK, GAIA is just a code for "Google Accounts".

Google Account Manager

Swing and a miss...once again poor research shatters my shoddily constructed facade. About the Google Account Manager – what do you think that would be able to provide?

I can't translate these login pages into French (with &hl=fr), strange

[Mobicpax was here]

Hm, Mobicpax´ links are full with adsense and no content...."online catalog"

>> Hm, Mobicpax´ links are full with adsense and no content...."online catalog" <<

You actually fell for it? :-)