Why Aren't County/City Public Records Available On The Internet?

Is it reasonable for the city and county to charge citizens twenty five cents a copy for public documents considering that they cost less than five cents a copy to make? A copy of the recent county budget cost over twenty dollars for a taxpaying citizen to obtain. Why aren't more public documents made available to the public via the internet as most counties do?
The city administrator stated that he has charged $.25 a copy for documents for over eighteen years, yet never placed a sign in the office announcing that, could not produce any authorization for doing such(until recently), has not kept a record of money taken in or how it was used.
Why are citizens paying for public information they have already paid for through taxes?

Report Finds Tenn. Pre-K gains Fade by 2nd Grade

NASHVILLE, Tenn. (AP) -- An outside study has found the advantages of participating in Tennessee's public pre-kindergarten program wane by the time students reach the second grade. The report conducted for the state finds that children who attended pre-K performed better in reading, language and math in kindergarten and in the first grade. But the study conducted by the Columbus, Ohio-based Strategic Research Group found that by the second grade, there was no statistically significant difference between those who went to pre-K and those who did not. The report measured student achievement using the results of standardized tests given in three academic years between 2004 and 2007.

Gov. Phil Bredesen, a Democrat, has grown the state's pre-K program since coming into office in 2003 from about 3,000 students a year to more than 17,000. Bredesen said the report shows that pre-K better prepares children for school. But he acknowledged that more work needs to be done. "It probably makes it fairly obvious we have some more work to do in the first, second, third grades to hang on to those kinds of gains," he said.

Pre-K report: http://www.comptroller1.state.tn.us/repository/RE/prekeval08.pdf