One last thing: you say that it is unclear as to whether Implore allows for summoning either 22 HD creaturers or 24 HD creatures. The only place I can see where they mention the HD limit is in the Target entry where they say:
One elemental or outsider with 22 HD or less.
Nothing about 24 HD that I can see 
.
Also, since it says that any spells or effects that effect Planar Binding also work with Implore wouldn't that mean that both
Improved Calling and Infernal Bargainer would work with it?
You know, I have no idea why I thought it was unclear. Lost to the mists of time, I suppose. That would make the limit 26 HD - you're right, both the Malconvoker ability and Infernal Bargainer should work with it.
Are you going to add this to the guide?
Also, thoughts on my previous posts?:
I recently remembered an online article detailing blood elementals and blood mothers. Yes I know what you're thinking but they're actually evil Outsiders.
They may be inspired by/an adaptation of the ADND "corrupted" elementals from Ravenloft.
EDIT: In my copy of the FCII it says
Clerics of Glasya summon Kalabons instead of lemures with Summon Monster II spells.
You may want to add it in.
I notice you forgot to include the fiendish symbiotes from the Fiend Folio. They could be nice for Planar Binding.
Finally I noticed you didn't add the ameobic crawler and nightseed from Dragon 330. Why is this?
I have very little free time, and unfortunately this guide has taken something of a back seat to school. If you want to write up a section on the creatures in question, I'll certainly add it in. But if you want me to do it, it'll have to wait until I can devote some space in my schedule to it (space which, between school, work, and the few hours a week I get to have a social life, is few and far between).
Also, the amoebic crawler and nightseeds are neither evil nor outsiders.
