Here's a list of tutorials that can be used as exercise to gain speed/technique.
Concentrate on one technique (alternate pick, hammer-ons, pull-offs....) at a time. Then try to mix them together. Take the Mode tutorial for exemple. You could run the scale but alternate the technique used from string to string, one alternate, one hammer-on while going up the scale. Then one alternate, one pull-offs while descending the scale.
Speedy ideas
http://www.guitartricks.com/tutorial.php?input=213
http://www.guitartricks.com/tutorial.php?input=287
Hammer-ons
http://www.guitartricks.com/tutorial.php?input=338
Pull-offs
http://www.guitartricks.com/tutorial.php?input=367
http://www.guitartricks.com/lesson.php?input=9980
Legato
http://www.guitartricks.com/tutorial.php?input=282
http://www.guitartricks.com/tutorial.php?input=283
Sweeps
http://www.guitartricks.com/lesson.php?input=8750
http://www.guitartricks.com/lesson.php?input=9869
Modes
http://www.guitartricks.com/tutorial.php?input=370
Hope this helps. Let us know how it goes.