Tongue-tied?
How often have you found yourself tongue-tied in not knowing how to answer Muslims? The internet is rapidly becoming the best source of apologetics available, provided that you know where to look.
If, doubting the Qur'an's claim to divine inspiration you are asked to 'produce a sura like it' (Sura 2:23) you will find many suras fitting the bill posted at;www.suralikeit.com/. Muslims who say that they would convert to Christianity if you could show them a contradiction in the Qur'an should similarly be referred to www.answering-islam.org/Quran/Contra/ for a comprehensive list.
John Gilchrist's excellent resources on answering Islam are available at answering-islam.org.uk/Gilchrist/.
Islamic sites
Among Muslim sites www.al-muslim.org/ is one of the best so far. The 'Frequently asked Questions' section, although designed to answer Christianity is titled 'Muslims and Islam'.
Extensive other Islamic links, including Qur'an and Hadith sites, can be found at www.answering-islam.org/L_islamic.html and those wanting cheap Islamic books should shop at www.xmetric.com/islamicbooks/