Few people know that Microsoft have quite a few core development centres outside Redmond - or that there is in fact one based here in Dublin, Ireland.

 The local, international team develops core features for Windows Live for mobile phones and adCenter (still uses US spelling of centre though! ;). They code in Silverlight, AJAX and ASP.NET - so if you fancy looking at the current open roles, or even if you just want to take a look at what's going on there, check out their brand new Silverlight site: www.joinmicrosofteurope.com.