Should I tell her or keep it to myself?

I have a friend that I know only through online communication. (Don't tell me it's unsafe, I'm not meeting her in person or anything!) Anyway, she and I have both made the goal to get "makeovers" (lose weight, improve hair health, etc.) and we have set deadlines and stuff. But then she stopped talking to me a few weeks ago. (She does that a lot, and finally emails me after three or more weeks with a lame excuse.) I found some great websites, Youtube vids, etc. that may help her. But I don't wanna help her if she doesn't have the decency to drop me a message! But I wanna help her 'cause she's my friend... Should i tell her, or keep the info. to myself?