Finally I found a very good website which helped me a lot during my exams. this review is actually about a site which actually provides articles relevent to your topic, I am a biotech student and as every day new new things happen in this field so I needed a source which could send me relevent material as it happens.
Thus I found https://biotecnika.co.nr, dear its a damn good website which provides real time assistance to you in finding relevant material. just mail your queries to them and here they provide assistance in just few minutes. its a must visit for biotech and pharmacy students........the pages linked to it are really interesting and generates interests in the subjects. it has got some powerpoint download segment which provides assistance in projects, let me tell you one secret, I had to make a powerpoint presentation on transgenic plants, simply I sent a request to the publisher (hyperlinkers@gmail.com) & hooray next day the presentation was delivered in my inbox. sounds unbelievable, but its true*