For new fans
I'm seeing new user names here of folks who clearly like LTROI and are willing to discuss it intelligently. There is a fan discussion site, started in 2009, that has tons of cool stuff -- the discussions, fan fictions, fan art, and areas of related interest, such as discussions of JAL's other stories.
http://let-the-right-one-in.com
It's a free site, but I'm told that unregistered guests will see some banner ads. I don't remember seeing them, but I probably joined too quickly to remember them.
Go to the Board Index to see a list of all the threads. Here are some cool ones:
Let the Right One In (Film):
"Monster or Child--A Narrative Weakness in the Film." This is a (polite but) gloves-off discussion of Eli's motives.
Fan Art:
"Coming in from the Cold." Some of Daniel Ether's drawings for PeteMork's monumental fan fiction.
Fan Fictions:
"Kristina." A story so engaging that it takes your breath away.
"The Goldsmith." New, still in process.
"little Funny Fictions." Mostly light-hearted, short vignettes. One dear one is not to be missed. On screen 6, there is the tale of Eli's winter visits to old Farmer Halvard. "Trykk. Trykk." (Tap. Tap.)
I hope you visit. And if you're into LTROI as much as I am, I hope you'll stay a while.