Writing in the active voice makes the meaning clear while keeping sentences from becoming complicated and wordy. Sentences using passive voice are not necessarily wrong, just less effective than ...
Teaching students to write in the active voice will significantly strengthen their essays because sentences written in the active voice often have much more impact than those written in the passive ...
The Manila Times on MSN

In defense of the passive voice

THE cult of the active voice is one of the most enduring in English grammar. From grade school onwards most everybody is ...
This handout is also available for download in PDF format. We refer to a sentence as being in the "active voice" when the subject is performing the action of the sentence (the verb). A sentence is in ...