Warning! Graphs and del.icio.us references ahead! Non-del.icio.us nerds beware! Webmaster tool Grafolicious makes a neat-o line graph of del.icio.us user bookmark frequency of a web site over time.

Tallying is a way of recording data that counts in groups of five. The data is tallied as it is counted, with a mark for each piece of data, and then the frequency is recorded at the end. Frequency ...