Over 6 million people signed a petition that called upon the government to revoke Article 50. The debate held in Westminster Hall was unacceptable given the magnitude of signatures on the petition and should have been heard in the main chamber as should all petitions over 1 million signatures.
You may be interested in these active petitions
The Government set up a petitions website in 2011 and since then few petitions have actually been acted on by the government. The Petitions Committee should have the power to debate these petitions in the main chamber.