Google Books is an helpful device when searching for books on the internet; even when you are not allowed to read all the pages of a book, the service is very helpful as you can search for words in the books, and in this way may be directed directly to the most relevant pages of the book. Here are some examples:
When it comes to Philo, I would like to point out the availability of the followings books on Google:
D.E.Aune et al., Neotestamentica et Philonica (Festsschrift Peder Borgen)
P. Borgen, Philo of Alexandria; An Exegete of his time (Brill 1987)
Per Jarle Bekken, The Word is Near You.
Kåre Fuglseth, Johannine Sectarianism in Perspective
David T. Runia, Philo of Alexsandria and the Timaeus
T. Seland, Establishment Violence in Phil and Luke (Diss 1995)