A.1.4 Are anarchists socialists?
Yes. All branches of anarchism are opposed to capitalism. This is because capitalism is based upon oppression and exploitation (see sections B and C). Anarchists reject the "notion that men cannot work together unless they have a driving-master to take a percentage of their product" and think that in an anarchist society "the real workmen will make their own regulations, decide when and where and how things shall be done." By so doing workers would free themselves "from the terrible bondage of capitalism." 
(We must stress here that anarchists are opposed to all economic forms which are based on domination and exploitation, including feudalism, Soviet-style "socialism" -- better called "state capitalism" --, slavery and so on. We concentrate on capitalism because that is what is dominating the world just now).
Individualists like Benjamin Tucker along with social anarchists like Proudhon and Bakunin proclaimed themselves "socialists." They did so because, as Kropotkin put it in his classic essay "Modern Science and Anarchism," "[s]o long as Socialism was understood in its wide, generic, and true sense -- as an effort to abolish the exploitation of Labour by Capital -- the Anarchists were marching hand-in-hands with the Socialists of that time."  Or, in Tucker's words, "the bottom claim of Socialism [is] that labour should be put in possession of its own," a claim that both "the two schools of Socialistic thought . . . State Socialism and Anarchism" agreed upon.  Hence the word "socialist" was originally defined to include "all those who believed in the individual's right to possess what he or she produced."  This opposition to exploitation (or usury) is shared by all true anarchists and places them under the socialist banner.