A roundup of some of my projects that may be of interest:1. FastImage ResizeThis builds on my work on FastImage to provide an image resize facility. The resize code calls libgd to do the work of resampling and resizing the image – this is a library that is very likely to be already installed on your system if it is some flavour of unix / linux or even OSX. And if not, it is very easy to install. This is a light and simple option if you don’t wish to install heavier libraries such as RMagick (which relies on ImageMagick or GraphicsMagick) or ImageScience (which relies on FreeImage).2. ScroogeThis is a plugin and gem to optimise queries to the database based on a learning algorithm that looks at how the results of each query are used. I worked on this with Lourens Naudé earlier this year, and I will shortly make a minor release with a few further optimisations and tests. Try this if your database is slowing you down, but also see slim-attributes if you are using MySQL.3. Read From SlaveA gem to force your database reads to a slave database while your writes go to the master. It’s fast and simple, it works a treat, and we have it in production use.