Upload the training videos to Commons and link them from the portal on wiki https://w.wiki/fYm

http://commons.wikimedia.org/wiki/File:Wikidata_fr%C3%A5n_grunden_Del_1_Introduktion_till_Wikidata.webm
http://commons.wikimedia.org/wiki/File:Wikidata_fr%C3%A5n_grunden_Del_2_Bibliografiska_data_p%C3%A5_Wikidata.webm
http://commons.wikimedia.org/wiki/File:Wikidata_fr%C3%A5n_grunden_Del_3_Introduktion_till_SPARQL.webm

Also on youtube: https://www.youtube.com/playlist?list=PLWM6L2cY229rlXFSyUG8axSPJ4Ul4pNqW