The following are colleges and universities in Sri Lanka with online presence:
1. Arthur C Clarke Institute of Modern Technologies (http://www.accimt.ac.lk/)
2. Eastern University of Sri Lanka (http://www.esn.ac.lk/)
3. Open International University (http://www.openinternationaluniversity.org/)
4. Open University of Sri Lanka (http://www.ou.ac.lk/)
5. Rajarata University of Sri Lanka (http://www.rjt.ac.lk/)
6. Sabaragamuwa University of Sri Lanka (http://www.sab.ac.lk/)
7. South Eastern University of Sri Lanka (http://www.seu.ac.lk/)
8. Sri Lanka Institute of Information Technology (http://www.sliit.lk/)
9. University of Colombo (http://www.cmb.ac.lk/)
10. University of Jaffna (http://www.jfn.ac.lk/)
11. University of Kelaniya (http://www.kln.ac.lk/)
12. University of Moratuwa (http://www.mrt.ac.lk/)
13. University of Peradeniya (http://www.pdn.ac.lk/)
14. University of Ruhuna (http://www.ruh.ac.lk/)
15. University of Sri Jayawardenapura (http://www.sjp.ac.lk/)
16. University of the Visual & Performing Arts (http://www.vpa.ac.lk/)
17. Uva Wellassa University (http://www.uwu.ac.lk/)
18. Wayamba University (http://www.wayambauniversity.lk/)
Please post any other university if known.