The following links are reputable websites with only authentic knowledge and references back to established scholars from contemporary times and from the past.

English:

www.masjidusunnah.co.uk  –  Our sister organisation in the U.K

http://www.alifta.net  –  An excellent resource for fatawa issued by the most senior scholars in contemporary times.

www.spubs.com  –  One of the earliest and most comprehensive websites calling to the Sunnah.

www.salafisounds.com  –  An extensive resource for english audio lectures by various speakers.

www.spreaker.com/user/radio1mm  – Another amazing resource for audio lectures.

Urdu:

http://sau.posthaven.com/ – Urdu audio website

http://tawheedekhaalis.com – A very good resource especially for urdu  translations of contemporary and classical text