Below are a few (quite extensive) summaries about modern topics in dinosaur paleontology.

Dinosaurs' metabolism
The facts for and against warm-bloodedness. Dinosaurs' lifestyles
Discussions about changes in the conceptions we have of dinosaurs' environment, posture, behaviour, etc.

The dinosaur-bird link
Information about the recently discovered extremely birdlike, some feathered theropods, debates on the origin of flight, on the skin of dinosaurs...
Dinosaurs' extinction
The proofs for the existence of an extraterrestrial impact at the end of the Cretaceous, and a discussion about the circumstances of the extinction, together with comments on other hypotheses.

Complete Table of the dinosaur discussions

Dinosaurs' metabolism
Explanation of the terms
Feathered dinosaurs
Dinosaur hearts and pterosaur endothermy
Pterosaur endothermy
Arctic and Antarctic dinosaurs
Mass homoiothermy
Predator / prey ratios
Bone histology
Posture, behaviour and growth
The Sauropod feeding problem
The Sailbacks problem
The success of dinosaurs
Dinosaurs' lifestyles
Moving
Posture
Ceratopian gait
Sauropod necks
Running
Habitat
The case for terrestrial sauropods
The case for terrestrial hadrosaurs
Feeding
Collecting food
Sauropod trunks
Chewing
Digesting
Behaviour
Herds
Social structure
Cares to the young
Intelligence
The dinosaur-bird link
Archaeopteryx and its links to both birds and dinosaurs
Dinosaurian features of Archaeopteryx
Archaeopteryx feathers
The wishbone debate
Three problems, and answers
The feathered dinosaurs
Feathers versus scales
Description of the feathered theropods
The origin of flight
Cursorial or arboreal
Relationships among early birds and bird-like dinosaurs
Dinosaurs' extinction
Proofs for an extraterrestrial impact
The iridium-bearing layer
Shocked quartz
Nickeliferous magnetites
Other mass extinction and impacts
Circumstances of the extinction
The scheme of the extinction
The disappeared species
Other hypotheses
The marine regression hypothesis
The volcanic hypothesis
Some more hypothesis