There are a lot of free adventures produced by the various DIY D&D outlets.
What there are not, is a way to figure out what's in all these adventures short of downloading and reading every single one of them yourself.
Now in my experience, October's tough enough as it is without one more person declaring it National Somewholeothernewthingyouhavetodo Month, but I cannot possibly be the only DM who'd appreciate it if, for a few weeks at least, peeps took it upon themselves to down and read just one of the many free adventures that have been put out and give the rest of us the scoop on them.
Please don't just do this:
"I read Scarab of the Beezle Warb" by Fridgey Majesticness! It was great! Highly recommended!
There's a lot of these, and the reviews will probably be mostly very kind. What DMs trying to sort this adventure from dozens of others they don't have time to read will want to know is:
1. What kind of adventure is it? (Location based? Dungeon? Town? Etc.)
2. How long is it?
3. Were there any particularly noteworthy things in it? (Monsters, traps, plot ideas, mechanics, etc.)
4. What sort of vibe is going on in it? (Creepy? Gonzo? Sword and sorcery? Chivalry? etc.)
5. Would you run it? Why or why not?
6. Does it resemble anything we might've seen before?
Anyway, yeah, a humble request. You'd be doing everyone, including the people who wrote the adventures, a favor.
If you have a blog you can post the review there, and if you don't, you can post it here. Either way, if you have a link, go ahead and put the link in the comments.