Peacock Tree Frog on a flower - With much much research I located a similar image. I believe this is the photographer: Darren's' photostream
The vivid red or orange skin of the splash-backed poison frog (Dendrobates galactonotus) is a danger signal to potential predators. The frog lives in leaf litter on the rain forest floor of the southern Amazon River Basin in South America.
Thumbnail dart frog - Peru
Frog Umbrella - This tiny little frog was snapped clinging to a leaf to shelter from the rain in a downpour in Jember, East Java, Indonesia
Green Poison Arrow Frog, we have 4 of these guys at the wildlife center (my work) and they're pretty awesome, so small and colorful that they don't look real