I just finished something I want to share. I'm a very poor guitar player. Still struggling with the F. While sweating and learning I also wanted to play a lot of songs. Problem is that it takes a lot of time to search for songs with chords one masters. You can spend a whole day looking, without finding the song that fits the mood. Luckily sites like Chordie.com help a lot, but you still need to search a huge database for songs you can play. I made that process a little bit easier. I've called my chord-searchengine SearchByChords.com and it searches sites like chordie, ultimate-guitar.com and guitarfiles.be.
How it works: you can enter (for example) something like 'Em, G, D, A, C', hit search, and you get alle the songs you can play with exact these chords, or with some of these chords. If you're logged in you can also save a song to your personal songbook. It's not fancy and rather straight forward. Still, hope I've not only made my own life easier with this online app, but also the life of other hobby guitar players. It's free to use.
@moderators: I'm a new forum user. If you feel this is spam, feel free to remove this thread. I just wanted to share cause it seemed relevant and useful.