Astute bloggers give very up-to-date links to information, so searches often usefully end up, if not start, in the 'blogosphere.'  Here are a few blogs that are in my reader currently, as well as a custom search for education blogs:

Blogs:


Edublogs: Education blog custom search
Online Magazines:

  •  ELearn
  • AJET: Australasian Journal of Educational Technology


Quintura is a visual search engine that clusters searches on the fly: 

Links to search engines: These are the search engines I find I return to most often.  There are many alternative search engines that offer advanced and highly honed targeting services.  Most offer 'search by date' options in the advanced search options.
Google Scholar Google's targeted search at scholarly papers and articles.  In addition to the search by date option available in the advanced search, Google also has various ways to alter searches to the last few days, if required.

Clusty is a clustering search engine, that is it automatically resorts results from your search into categories.  While it doesn't automatically offer the most up to date links, some of the categories in technology are, by nature, more recent than others. 

iBoogie combines clustering with a metasearch, and I've had some good results from it. iBoogie is now also offering a custom search facility.

iSEEK Education:  I find this targeted search engine is consistently fruitful.

iSEEK Web 

Google Scholar

Deep Web clustering search engines

technorati is a blog search engine with a useful filtering tool on the main page.  Because technorati searches blogs, it tends to be quite up to date.



More examples of custom  and targeted searches:  these search engines have been set up, and are maintained by, professionals in each area.  They can be very useful and will usually more return recent results.  If not, the current year may be specified: ie 'freemind 2009'

The author of this customised Google search has created a Google gadget so that his customised search may be easily incorported on others' webpages: 

Examples of very finely honed custom searches: