The Solidarium Blog-ish Thing
Whatever you're searching for, it probably isn't here...
Search your Visual Studio source code
Here's a very useful thing: a really powerful Source Code Search addin for Visual Studio. It builds a full text index of your code - like Google or any other search engine does for the web - and lets you search it instantaneously. It'll happily search millions of lines of code in a fraction of a second.
Decoding a base64 attachment online
Here's a clever online decoder for base64 data - it'll decode email attachments or any other base64-encoded documents:
All you need to do is enter the filename of the document (with its extension, eg. letter.doc, whitepaper.pdf, myfiles.zip) and then paste the text of the attachment into the box. The decoded file is then downloaded to your PC - easy!