Popsugar Tech Pen15 PEN15 Early 2000s Technology References 16 Early 2000s Tech References in PEN15 That Will Fill You With So Much Nostalgia 13 March 2019 by Caitlin Gallagher View On One Page Photo 6 of 16 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 You Got Major Butterflies When Your Crush Signed On The sound of the door opening when your crush signed online was an instant adrenaline rush. Previous Next Start Slideshow PEN15Technology & GadgetsDigital LifeGifsNostalgiaHumor