There is a 3.5 update for the fiend folio to bring it up to speed so to speak, really doesn't help many of the monsters in it. And it says in their description if they can be summoned and which spell is needed for it.
Rules compendium states
Using a spell-like ability usually takes 1 standard action and provokes attacks of opportunity unless otherwise noted. If the spell-like ability duplicates a spell that has a casting time of less than 1 standard action, the spell-like ability has that casting time.
Which matches the descriptions in the newer monster manuals as well. I think the SRD is incorrect in this case.
The below link has a consolidated list of which monsters can be legally summoned in 3.5, which is what I've been using to build my summon stat block book from. Some require special rituals or alignments to be able to add to your list and others require swapping creatures out.
http://community.wizards.com/go/thread/view/75882/19872206/Legal_3.5_Summonable_Monster_ListFiend Folio (arguably 3.5e)
Aoa Droplet (N, IV)
Bacchae (CN, III)
Demodand, Farastu (NE, IX)
Demon, Skulvyn (CE, IV)
Demon, Wastrilith (CE, IX)
Deva, Monadic (G, IX)
Deva, Movanic (G, VII)
Formian, Armadon (LN, VII)
Formian, Observer (LN, IX)
Formian, Winged Warrior (LN, VI)
Imp, Bloodbag (LE, IV)
Imp, Euphoric (LE, IV)
Imp, Filth (LE, IV)
Kaorti (NE, II)
Maelephant (LE, VIII)
Nerra, Kalareem (N, IV)
Nerra, Sillit (N, VI)
Nerra, Varoot (N, II)
Rilmani, Cuprilach (N, IX)
Rilmani, Ferumach (N, VII)
Slaad, Mud (CN, VI)
Yugoloth, Piscoloth (NE, VII)
Yugoloth, Skeroloth (NE, IV)