Article presents the most important initiatives being in opposition to the fascist and nazi movement, which can be easily found on the Internet. There has been described activity of Polish antifascist and antinazi groups run in different electronical forms, such as information services (NEVER AGAIN, Anarchic Information Center, The Black Banner), blogs (a.o. Antifa), private sites or discussion forums. The article describes also other initiatives trying to fight with racism and fascism in Poland (The Young Breslau Association). Authors present the diversity of Polish antifascists which are using the Internet as a weapon that can serve to block nazi Internet sites or as a place of advices that can be helpful in case of racial or antisemit attacks.