Taiji has the following punching skills:

1. Vital punch (jab to the belly), Chang vital punch - YouTube
2. Deflect, grab, and punch (jab to the chest), Chang step out deflect grab and punch - YouTube
3. Bending bow and shoot tiger (cross), Chang bend bow shoot tiger - YouTube
4. Striking tiger (hook), Chang striking tiger - YouTube
5. Twin peak to the ears (double hooks), Chang twin peaks to ear - YouTube
6. Snake extends tone (uppercut), Chang snake extend tone - YouTube
7. Turn around hammer (back fist), Chang turn around hammer - YouTube
8. Fetching arm (hammer fist), Chang fetch arm - YouTube
9. Drop down hammer (downward punch), Chang drop down hammer - YouTube

Taiji contains all the boxing skill (jab, cross, hook, uppercut) and much more.

Taiji also has the following kicking skills:

1. Separate leg (toes kick), http://www.youtube.com/watch?v=y9Qn6NfU2_o
2. Turn around heel kick (heel kick), http://www.youtube.com/watch?v=wklPFVHVBQA
3. Rooster on one leg (knee strike), http://www.youtube.com/watch?v=QwBSXaJw1HA
4. cross leg (reverse side kick), http://www.youtube.com/watch?v=sATLJ79SEkg
5. Lotus kick (outside crescent kick), http://www.youtube.com/watch?v=idEMJNi5AmY

I'll say that Taiji is more a striking style than a grappling style (no hip throw, no single leg, no double legs, ...). What do you think?