I know I can leave wikipedia "hits" out of a search by adding -wikipedia to the search term(s), but it doesn't always work, and I'd like to set up some kind of shortcut, so I always leave out wikipedia.
Any ideas?
Thanks in advance.

search for [EXAMPLE]
http://www.google.com/custom?cof=AH%3Aleft%3B&as_dt=e&as_sitesearch=wikipedia.org&q=EXAMPLE

search for [wikipedia watch]
http://www.google.com/custom?cof=AH%3Aleft%3B&as_dt=e&as_sitesearch=wikipedia.org&q=wikipedia+watch

As GeorgeR says, -site:wikipedia.org is the way to go.

If you use Firefox, the surfclarity extension claims to do what you want:

"Permanently remove unwanted domains from Google search and news results and Yahoo search results by maintaining your own filters. Filters are maintained in Preferences, along with any Filter exceptions"
https://addons.mozilla.org/en-US/firefox/addon/12305/

Google Searchwiki? :-)

How can I block the picture of Jimmy Wales from the top of each article? :)

I find the picture of Jimmy Wales off-putting too.

When a community project starts to glorify its leaders, it's a sure sign that the project is losing its grassroots origins.