It's a series devoted to listing songs in which the 50 states of the United States of America feature. I'll start with Alabama and finish with Wyoming. The rules of the series, as decided on by me, specify that a song is eligible for the list for any given state when the name of that state figures in either the song's title or in its lyric or both. The state may be used adjectivally, as in 'South Texas Girl'. But reference to rivers, where their names coincide with the names of states (Colorado, Mississippi, Ohio), doesn't count. Rivers run on and cannot be tied down so. And reference to some place in the state, like a city or a geographical feature, also doesn't count, unless the name of the place includes the name of the state adjectivally.
For each song I give its title, a relevant section of the lyric, and links whenever they are available.
The posts for the states: 1. Alabama. 2. Alaska. 3. Arizona. 4. Arkansas. 5. California. 6. Colorado. 7. Connecticut. 8. Delaware. 9. Florida. 10. Georgia. 11. Hawaii. 12. Idaho. 13. Illinois. 14. Indiana. 15. Iowa. 16. Kansas. 17. Kentucky. 18. Louisiana. 19. Maine. 20. Maryland. 21. Massachusetts. 22. Michigan. 23. Minnesota. 24. Mississippi. 25. Missouri. 26. Montana. 27. Nebraska. 28. Nevada. 29. New Hampshire. 30. New Jersey. 31. New Mexico. 32. New York. 33. North Carolina. 34. North Dakota. 35. Ohio. 36. Oklahoma. 37. Oregon. 38. Pennsylvania. 39. Rhode Island. 40. South Carolina. 41. South Dakota. 42. Tennessee. 43. Texas. 44. Utah. 45. Vermont. 46. Virginia. 47. Washington. 48. West Virginia. 49. Wisconsin. 50. Wyoming.
Update on July 4 2008: There's a post concluding the series here. And there's this song for good measure.