Perhaps it's because everyone is concentrating on the negative ones?

Here, let me correct that:

http://www.goodnewsnetwork.org/muslim-woman-disarms-protester-with-a-hug/

http://www.goodnewsnetwork.org/every-person-deserves-rest-peace-muslims-unite-repair-vandalized-jewish-cemetery/

http://www.goodnewsnetwork.org/muslim-businessman-erects-tallest-christmas-tree-solidarity-iraqi-christians/

http://www.goodnewsnetwork.org/muslims-go-catholic-mass-across-france-show-solidarity-priests-murder/

http://www.goodnewsnetwork.org/muslims-flood-streets-condemn-terrorism-70000-clerics-issue-fatwa-isis/

http://www.goodnewsnetwork.org/man-shot-mosque-goes-back-forgiveness-finds-hugs-waiting/

There's a huge load of media prejudice against Muslims to overcome, so you'll have to get creative in order to find any positive stories.