BismillaharRahmanirraheem, Alhamdulelah wa Salat wa Salam ala Rasoilulla Muhammad bin ?Abdullah bin ?Abdul-Muttalib (who was called Shaiba) bin Hashim.
This question was raised in philly during the conference sponsored by darul hadeeth. The question posed to the brothers from SP(salafipublications). The answer was simple in that as to the books on their website and at their bookstore when by 1) an author, 2) a translator or 3) a publisher who is not upon the manhaj of the salaf and has problems whatever they may be, however, the book is in accordance with The Book of Allaah, the Sunnah and the way of the Salafus Salih and that it has been checked by the students of knowledge for authenticy. Then and only then it may be read and sold through their bookstore and most importantly they place at the very beginning of each of these books is a disclaimer warning the reader of the deviation of either the author, translator or publisher. So one doesn't become careless with reading any every work of the one in question thus fall victim to there errors which are in opposition to the aqeedah and manhaj of salafus salih which is none other than the truth. So with all that I would advise the english speaking reader to check and compare the list of books at www.salafibookstore.com if they have uncertainty about any particular books they wish to take knowledge from since the brothers at SP/Maktabu-Salafiyyah have this checking system in regards to the books that they sale just as I've explained and hopefully someone can correct me if i am wrong in the above narration from what I heard from Aboo Khadijah and Hasan as-Somali in philly this past conference. Shawwal/1423. barakullahu feekum ya muslimoon.Subhanka Allahummah wa bihamdika.........