Demographically, what is the profile of the average "settler"? Are they ultra-orthodox, Herodim or something? I know very little about Israeli domestic stuff
Some of the settlers move to the occupied territories for religious reasons while others are drawn by a relatively lower cost of living and financial incentives offered by the government. Ultraorthodox Jews form one-third of all settlers.
From the second article, you should give it a read.
Yeah that's the stereotype, that settlers are typically right-wing orthodox types that believe the entire holy land should belong to them. Though, the Al-Jazeera article says Ultra-Orthodox are 1/3 of settlers and many others are there for religious or financial reasons.
Warning: both sources are extremely biased against Israel. Take information read from them with a grain of salt. Better yet, verify the information against credible sources.