Tumblr is very easy once you get the hang of it... Follow some blogs and you'll surely enjoy Tumblrin :)
Plus, there are many kpoppers on Tumblr. people on tumblr make really good graphics and gifs. they are really awesome!
i follow: fy-exo, sunkyeo, misunderstoodbyuntae, taeveons,
sailorseo, dokaiso, empirestateofgirlsgeneration, evonrun, kristeuls, soonkyuism, 0-fivethirty, ninepearls, kandycute, devastatic, oh-luhans, wu-fan, kris-hae, airportsoshi, yeahsoshi-sone, ggoh, sunbuns, sunnyjjang, hysoonkyu, soegogi, taemagotchi, and many many more.... yeah...