I think I've read somewhere that there are plans afoot to improve the search facility on iSpot. Could I put in a request to include the possibility of searching amongst one's own observations?
yes and yes. I have been testing the new funcionality before its launched and indeed the new searching is better than the existing version. However you can even now search through your own observations to some extent, for example on the browse observations page you can select your own username then choose say invertebrates between two different dates. But the new version will allow quite a lot more than this.
That's great! Thanks.