Nifty things online

Here's a few nifty things I've learned about recently:

• Odiogo - When you sign up for Odiogo, your posts become listenable as well as readable. I found out about this over at Catalogablog - try listening to one of the posts over there. I'd like to sign up for that sometime soon. I think I'll probably sign my other blog up, since most of the posts there are really long.
• Omeka - A free and open source product for putting up online exhibitions. Yet another one I'd like to look over. I don't think I, personally, would ever need to use it, but the library might be able to use it for something. We could do exhibits of our Texas history stuff, special collections, etc.
• OCLC Classify - Ok, this is something I've known about for a while, but I don't think I've written about it yet. This can, at times, be very helpful when I need to decide between multiple possible call numbers for an item. I can see how many libraries have used one versus the other(s). Right now, it's still experimental - I wonder if OCLC plans on charging for access to this once it's no longer experimental? I hope not.
• OCLC xISSN History Visualization Tool - This is pretty cool. You can search a particular ISSN, and it will give you a visual representation of that title's history (as long as the ISSNs for each of the various incarnations the title has gone through are available to the tool). I haven't had much luck with the ISSNs I've hunted down and tried out - the best way to be sure to see what this tool is capable of is to try one of the ISSN sample links. You get a visual representation of preceding ISSNs, your requested ISSN, succeeding ISSNs, and which of these are print, online, microform, or CD-ROM.