I used to read iheartsl blog feed but I haven't in awhile, I usually just go to Flickr and check out pictures and if I like something and there are details on the blog check it out (and then scroll through to see what's there). I found that on Flickr I would often see items that I wouldn't see on the feeds or just randomly looking at blogs. I use it to get ideas and find new products. But it's kind of like anything else, if you aren't into that then it doesn't seem important or you don't see people using it.
There's lots of stuff in SL I get excited about or enjoy and then find out there's people who have no idea about whatever it is. Like Fantasy Faire, I was excited it's opening today and last night I was with people who had never heard of it. And i've met other people who don't know about Tinies and then , based on the virtual secrets site, there are a lot of people who feel that their stuff is super important and I've never heard of half the people or locations or whatever they are talking about.