I have Mrs Eaves premium font. Its the same font which is used in WordPress Logo. Can i use it in my logo?. What is premium font mean?. Do i have to purchase license for each website's logo?
Can I embed fonts into digital documents?
Web sites and CD-ROM titles may feature bitmap images made using our fonts, but the fonts themselves may not be distributed. Embeddable font formats require the duplication of the fonts and thus seriously compromise the security of typefaces. The Emigre license excludes font embedding, except as described in the Embedding License Addendum. This addendum allows restricted distribution of portable digital documents in Adobe Acrobat PDF format under specific circumstances.
This information is not in the licence included with the font (if you're buying from MyFonts, you can view licences from MyFonts' Buying Choices pages).
So if you already have the font, you're OK using it in a raster graphic on your sites.
But it appears you can also buy Mrs Eaves as a Web Font separately from Emigre.
I could not find any mention of any specific limitations on use within logos.