Yes, ranged attacks from spells are typically considered to be "weapon-like". This is definitely true of rays (and almost all ranged touch attack spells are rays) since from the rules:
You aim a ray as if using a ranged weapon
The rules further clarify that rays function as weapons for several other purposes, and the FAQ makes this very explicit:
Do rays count as weapons for the purpose of spells and effects that affect weapons?
Yes [...] rays are treated as weapons, whether they're from spells, a monster ability, a class ability, or some other source
The same rule applies to weapon-like spells such as flame blade, mage's sword, and spiritual weapon--effects that affect weapons work on these spells.
Most ranged touch attacks which aren't rays are things like acid splash -- spells where you actually throw or aim a physical object. Those are even more "weapon-like" than rays, so it's probably simplest to say all ranged touch attacks work like this.
There's another FAQ that indicates you can take "Weapon Focus (ray)" and the like; strictly speaking I guess those wouldn't apply to orb spells like acid splash.
This is all following the precedent set by 3.5; in Complete Arcane it specifies that rays and touch attack spells are "weapon-like" and thus interact with feats in the same way that other weapons do, with a split between ranged/melee type spells.