有什么好的数据分析/数据库可视化/报告工具

I have developed a web application driven by a mysql database that stores information about users, site usage, photo uploads (its a photo based site) etc. I have multiple databases storing data for different aspects of the site. I want to be able to produce reports for some of the questions I will have about how the site is growing and how it is being used. For example, how many new users have uploaded over a certain number of photos this month. I have developed a web application driven by a