Zootaxa is a major open access publisher of taxonomic papers. Here is a collection of 24 papers published for open access in October 2010.
12 papers on Coleoptera were published in Sept 2010 in Zootaxa. Two of these are for open access. More papers in the Coleoptera collection in Zootaxa: http://www.mapress.com/zootaxa/taxa/Coleoptera.html
Yes, Zootaxa's content updates can now be followed on twitter. You can also subscribe to its RSS.
According to the May 2008 report in Essential Science Indicators from Thomson Reuters, Zootaxa is a rising star among ISI journals in the field of Plant and Animal Sciences that have achieved the highest percentage increase in total citations from October 2007 to December 2007.