I just had a chance to give a go to a new product - "Guess The Product". It's a very simple web service that may be helpful to people looking for feedback of their home pages.
You can submit your product's landing page and will receive feedback from others that are looking for feedback too. The feedback and comments may not be super elaborate, but it'd be coming from makers building their products in most cases. And I think that's very important. This service is focusing on first impressions only as people have from 10-40 seconds to view on your homepage.
The trick is that you need to leave at least 2-3 reviews before being able to submit your product. And that makes sense. "Once upon a time" there was a service operating in a similar manner - "review roulette"... or something like that.
Anyways, whether you are launching or not, I'd recommend giving it a go.
Product Hunt Real or Fake - Guess which products are real and which are jokes
Magic Playlist - Get the playlist of your dreams based on a song
Five Second Test - Five Second Test is another conversation rate optimization software that lets you test your landing pages, logos, brochures and all the other kind of marketing material.
Spotalike - Spotify playlist with similar songs, according to Last.fm
Product Haunt - Browse the Product Hunt graveyard 👻
Playlist Machinery - Tools that help you create & organize your Spotify playlists