I guess since it's an off topic forum I had a chance to just mention a few things that got me really into macro and micro fetishes. It started with friends that were into furry art, obviously being macro/micro but I wasn't really into it. In all fairness, all of my furry friends were gay and I sort of like playing both sides of the field but when they found out I wasn't a furry they basically stopped being my friends.
Later on I found a few other websites, forums, chat rooms and this was back during dial up so I wasn't too active but I did have a few friends that kept in touch sending e-mails. I noticed a trend that most of them were trying to make me buy stuff from them, some were good friends but a good chunk were people who edited photos of giantess women and trying to make me pay for stuff to download or buy something through the mail. I don't want to sound like a complete freeloader but I had no interest in what they were trying to sell, most of my fun discussions were about movies, tv shows and other stuff to spark a conversation.
I've been lurking websites since 2004, and I guess I like everything around me being giant. Things always seem better when they're bigger.