I was skimming through some of the older questions namely Is 'Home' button still a must? and Home button vs Logo link? and there seems to be a general impression that the home logo serves as a general link to go to the home page and people are aware of it.
Note : I did read this article which about UX trends in 2012 which has this to say about people using the logo link to go to the home page
In the usability tests we observed, few users know that clicking on a site logo will take them to the homepage. Many users navigate back to home using the browser back button – even though clicking on the logo is a commonly accepted norm, and the vast majority of websites use this convention
That said, the use of the logo as a home link is not uncommon and I was wondering there was a minimum size which the logo must be to ensure that it can be easily clickable without requiring a precise mouse positioning.
My question was also fueled after finding the small facebook icon used in the the new facebook layout super hard to click unless I was using a mouse
Note : I know the size of logos will depend on the design and there is not going to be no definite answer but is there any recommended standard to ensure that clickablity is easy for such a critical link which drives navigation to the home page.Another question which ties in the with the size is the noticablity of the logo