This is a matrix representation of almost all known antidepressants and their target neurologic pathways.
There is a download link directly BELOW the embedded document.
Further information on the role of each of the receptors will be posted later below this link.
In the meantime some information on the 5-HT serotonin receptors can be found in a nice table format here on wikipedia.
Soon I will copy some of of those facts over onto this page.