With a pinch of salt, check out these two videos. The first is by Dawn News in Urdu, uploaded on youtube on May 22, 2011, that quotes a leaked cable of Bryan D. Hunt, a US diplomat in the Lahore consulate. The report suggests that some extremist groups in Southern Punjab receive more than 10 million dollars annually directly from Saudi Arabia and UAE.
The report, however, maligns whole maslaks (Islamic schools of thought) instead of focusing on the specific extremist-leaning organizations (belonging to these maslaks or otherwise), like Sipahe Sahaba, Jamatud Dawa, Jaish-e-Mohammad, and Tehrik-e-Taliban Pakistan. The following cable from the same diplomat, published by Dawn, names these specific groups. It also emphasizes the mutual connection among these groups (the connection extends beyond Southern Punjab). The cable also suggests that Qaddhafi's Libya may also have supported the extremist groups in Pakistan.
Next, another clip in Urdu, uploaded on youtube on March 2, 2012, where some Ahle Hadith ulama reject and protest the militant agenda of Lashkar-e-Tayiba and Jamatud Dawa. (This particular clip does not contain any condemnation of these militant groups' anti-Shia ideology and activities.)