Text: answer: first, it is important to point out that "so many" is not an accurate characterization.

Correct capitalization: Answer: First, it is important to point out that "so many" is not an accurate characterization.

Text: the authorities were hampered by the fact that telephone communication was knocked out almost immediately and that they did not expect any of the "iron dams" to fail.

Correct capitalization: The authorities were hampered by the fact that telephone communication was knocked out almost immediately and that they did not expect any of the "iron dams" to fail.

Text: sometimes while employing memory stick, users might come across a situation wherein they would end up deleting some of their favorite video files while deleting some unneeded ones.

Correct capitalization: Sometimes while employing Memory Stick, users might come across a situation wherein they would end up deleting some of their favorite video files while deleting some unneeded ones.

Text: chiliad - free english online dictionary based on wordnet 3.0

Correct capitalization:
Chiliad - Free English online dictionary based on WordNet 3.0