I found this article from North Shore LIJ / The Center for Human Reproduction on Clomid. What it is, how it is used, what the risk factors are, what to expect, etc. NSLIJ just happens to be where we spent the first four of our six year fertility journey.
We used Clomid as a last resort in our sixth IUI cycle (got pregnant, but it became ectopic), and then again in our 9th IVF cycle (non-effective). I hope you find this article helpful.