1.   A ghostlike hand of an older Marine emerges to help him.

2.   But a new category of software is emerging to help clean up hard drives.

3.   Coming up with the money for a down payment is a challenge for many lower-income borrowers, but a number of government programs have emerged to help.

4.   Technologies and businesses have emerged to help e-tailers game the system.

5.   Out of the avalanche of films, a few trends emerge to help moviegoers make sense of the fall.

6.   Patterns emerged that helped them make better predictions.