According to SRD Gamemastering SLA's can be counterspelled.
According to SRD Magic SLA's cannot be counterspelled.
Which is correct?
Do you know what official source that SRD Gamemastering information came from?
According to the PRD:
Spell-Like Abilities: "Spell-like abilities cannot be used to counterspell, nor can they be counterspelled."
Glossary - Spell-Like Abilities (Sp): "Spell-like abilities can be dispelled but they cannot be counterspelled or used to counterspell."
I can't find that exact text in the PRD. ("Spell-like abilities can be dispelled and counterspelled as normal.")
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